C++与数据结构基础简明教程课后习题答案.docx
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C++与数据结构基础简明教程课后习题答案
1-7-1
//输出一个数的10倍
#include
usingnamespacestd;
intmain()
{
cout<<"Pleaseinputaninterger:
\n";
inta;
cin>>a;
cout<<"result="< return0;}1-7-2//输出两个数中的较小的#includeusingnamespacestd;intmain(){ doublex,y,min; cout<<"pleaseinputtwonumbers"< cin>>x>>y; min=(x>y?y:x); cout<<"thesmalleris"<<''< return0;}1-7-3//输入半径计算周长和面积#includeusingnamespacestd;intmain(){ cout<<"请输入半径\n"; doublerad; cin>>rad; doublec,s; c=2*3.14*rad; s=3.14*rad*rad; cout<<"周长是"< cout<<"面积是"< return0;}1-7-4//将10000秒化成小时分钟秒#includeusingnamespacestd;intmain(){ inthour,min,second; hour=10000/3600; min=(10000%3600)/60; second=10000-hour*3600-60*min; cout< return0;}1-7-5//将一个三位数倒叙输出#includeusingnamespacestd;intmain(){intnum,num_bai,num_shi,num_ge;cout<<"请输入一个三位数";cin>>num;num_bai=num/100;num_shi=(num-num_bai*100)/10;num_ge=num-num_bai*100-num_shi*10;cout<cout<cout<return0;}2-3//简单的输入输出#includeusingnamespacestd;intmain(){ doubley,n; cout<<"pleaseinputanumber\n"; cin>>n; if(n>0)y=n+1; if(n<0)y=n*n; if(n==0)y=0; cout<<"theresultis:"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
return0;
}
1-7-2
//输出两个数中的较小的
doublex,y,min;
cout<<"pleaseinputtwonumbers"< cin>>x>>y; min=(x>y?y:x); cout<<"thesmalleris"<<''< return0;}1-7-3//输入半径计算周长和面积#includeusingnamespacestd;intmain(){ cout<<"请输入半径\n"; doublerad; cin>>rad; doublec,s; c=2*3.14*rad; s=3.14*rad*rad; cout<<"周长是"< cout<<"面积是"< return0;}1-7-4//将10000秒化成小时分钟秒#includeusingnamespacestd;intmain(){ inthour,min,second; hour=10000/3600; min=(10000%3600)/60; second=10000-hour*3600-60*min; cout< return0;}1-7-5//将一个三位数倒叙输出#includeusingnamespacestd;intmain(){intnum,num_bai,num_shi,num_ge;cout<<"请输入一个三位数";cin>>num;num_bai=num/100;num_shi=(num-num_bai*100)/10;num_ge=num-num_bai*100-num_shi*10;cout<cout<cout<return0;}2-3//简单的输入输出#includeusingnamespacestd;intmain(){ doubley,n; cout<<"pleaseinputanumber\n"; cin>>n; if(n>0)y=n+1; if(n<0)y=n*n; if(n==0)y=0; cout<<"theresultis:"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
cin>>x>>y;
min=(x>y?
y:
x);
cout<<"thesmalleris"<<''< return0;}1-7-3//输入半径计算周长和面积#includeusingnamespacestd;intmain(){ cout<<"请输入半径\n"; doublerad; cin>>rad; doublec,s; c=2*3.14*rad; s=3.14*rad*rad; cout<<"周长是"< cout<<"面积是"< return0;}1-7-4//将10000秒化成小时分钟秒#includeusingnamespacestd;intmain(){ inthour,min,second; hour=10000/3600; min=(10000%3600)/60; second=10000-hour*3600-60*min; cout< return0;}1-7-5//将一个三位数倒叙输出#includeusingnamespacestd;intmain(){intnum,num_bai,num_shi,num_ge;cout<<"请输入一个三位数";cin>>num;num_bai=num/100;num_shi=(num-num_bai*100)/10;num_ge=num-num_bai*100-num_shi*10;cout<cout<cout<return0;}2-3//简单的输入输出#includeusingnamespacestd;intmain(){ doubley,n; cout<<"pleaseinputanumber\n"; cin>>n; if(n>0)y=n+1; if(n<0)y=n*n; if(n==0)y=0; cout<<"theresultis:"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
1-7-3
//输入半径计算周长和面积
cout<<"请输入半径\n";
doublerad;
cin>>rad;
doublec,s;
c=2*3.14*rad;
s=3.14*rad*rad;
cout<<"周长是"< cout<<"面积是"< return0;}1-7-4//将10000秒化成小时分钟秒#includeusingnamespacestd;intmain(){ inthour,min,second; hour=10000/3600; min=(10000%3600)/60; second=10000-hour*3600-60*min; cout< return0;}1-7-5//将一个三位数倒叙输出#includeusingnamespacestd;intmain(){intnum,num_bai,num_shi,num_ge;cout<<"请输入一个三位数";cin>>num;num_bai=num/100;num_shi=(num-num_bai*100)/10;num_ge=num-num_bai*100-num_shi*10;cout<cout<cout<return0;}2-3//简单的输入输出#includeusingnamespacestd;intmain(){ doubley,n; cout<<"pleaseinputanumber\n"; cin>>n; if(n>0)y=n+1; if(n<0)y=n*n; if(n==0)y=0; cout<<"theresultis:"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
cout<<"面积是"<
1-7-4
//将10000秒化成小时分钟秒
inthour,min,second;
hour=10000/3600;
min=(10000%3600)/60;
second=10000-hour*3600-60*min;
cout< return0;}1-7-5//将一个三位数倒叙输出#includeusingnamespacestd;intmain(){intnum,num_bai,num_shi,num_ge;cout<<"请输入一个三位数";cin>>num;num_bai=num/100;num_shi=(num-num_bai*100)/10;num_ge=num-num_bai*100-num_shi*10;cout<cout<cout<return0;}2-3//简单的输入输出#includeusingnamespacestd;intmain(){ doubley,n; cout<<"pleaseinputanumber\n"; cin>>n; if(n>0)y=n+1; if(n<0)y=n*n; if(n==0)y=0; cout<<"theresultis:"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
1-7-5
//将一个三位数倒叙输出
intnum,num_bai,num_shi,num_ge;
cout<<"请输入一个三位数";
cin>>num;
num_bai=num/100;
num_shi=(num-num_bai*100)/10;
num_ge=num-num_bai*100-num_shi*10;
cout<cout<cout<return0;}2-3//简单的输入输出#includeusingnamespacestd;intmain(){ doubley,n; cout<<"pleaseinputanumber\n"; cin>>n; if(n>0)y=n+1; if(n<0)y=n*n; if(n==0)y=0; cout<<"theresultis:"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
cout<cout<return0;}2-3//简单的输入输出#includeusingnamespacestd;intmain(){ doubley,n; cout<<"pleaseinputanumber\n"; cin>>n; if(n>0)y=n+1; if(n<0)y=n*n; if(n==0)y=0; cout<<"theresultis:"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
cout<return0;}2-3//简单的输入输出#includeusingnamespacestd;intmain(){ doubley,n; cout<<"pleaseinputanumber\n"; cin>>n; if(n>0)y=n+1; if(n<0)y=n*n; if(n==0)y=0; cout<<"theresultis:"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
2-3
//简单的输入输出
doubley,n;
cout<<"pleaseinputanumber\n";
cin>>n;
if(n>0)y=n+1;
if(n<0)y=n*n;
if(n==0)y=0;
cout<<"theresultis:
"<<''< return0;}2-4//输出学生学号和对应的成绩等级#includeusingnamespacestd;intmain(){ doublefenshu; intxuehao; chardengji; inti; for(i=1;i<=10;i++) { onerror:cout<<"pleaseinputstudentscore\n"; cin>>fenshu; if(fenshu>=90&&fenshu<=100)dengji='A'; if(fenshu>=80&&fenshu<90)dengji='B'; if(fenshu>=600&&fenshu<80)dengji='C'; if(fenshu>=0&&fenshu<60)dengji='D'; if(fenshu<0) { cout<<"error"; gotoonerror; } if(fenshu>100) { cout<<"error"; gotoonerror; } cout<<"theidis"< cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
2-4
//输出学生学号和对应的成绩等级
doublefenshu;
intxuehao;
chardengji;
inti;
for(i=1;i<=10;i++)
onerror:
cout<<"pleaseinputstudentscore\n";
cin>>fenshu;
if(fenshu>=90&&fenshu<=100)dengji='A';
if(fenshu>=80&&fenshu<90)dengji='B';
if(fenshu>=600&&fenshu<80)dengji='C';
if(fenshu>=0&&fenshu<60)dengji='D';
if(fenshu<0)
cout<<"error";
gotoonerror;
if(fenshu>100)
cout<<"theidis"<
cout<<"thescoreis"< } return0;}2-5//判断输入字符类别#includeusingnamespacestd;intmain(){charzifu;intascii;cout<<"pleaseinputacharacteristic\n";cin>>zifu;ascii=zifu;if(ascii>=48&&ascii<=57) { cout<<"数字\n"; gotoend; }if(ascii>=97&&ascii<=122) { cout<<"小写字母\n"; gotoend; }if(ascii>=65&&ascii<=90) { cout<<"大写字母\n"; gotoend; }cout<<"其他字符";cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
2-5
//判断输入字符类别
charzifu;
intascii;
cout<<"pleaseinputacharacteristic\n";
cin>>zifu;
ascii=zifu;
if(ascii>=48&&ascii<=57)
cout<<"数字\n";
gotoend;
if(ascii>=97&&ascii<=122)
cout<<"小写字母\n";
if(ascii>=65&&ascii<=90)
cout<<"大写字母\n";
cout<<"其他字符";
cout<end:return0;}2-6//求圆周率的近似值#include#includeusingnamespacestd;intmain(){intxishu=-1;doubledanshu=1.0;inti=1;doublesifenzhipi=0;do{ xishu=xishu*(-1); danshu=1.0/(2*i-1); sifenzhipi=sifenzhipi+xishu*danshu; i++;}while(danshu>=0.000001);cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
end:
2-6
//求圆周率的近似值
intxishu=-1;
doubledanshu=1.0;
inti=1;
doublesifenzhipi=0;
do
xishu=xishu*(-1);
danshu=1.0/(2*i-1);
sifenzhipi=sifenzhipi+xishu*danshu;
i++;
while(danshu>=0.000001);
cout<return0;}2-7//输出斐波那契数列前40个数,以8*5的格式输出#include#includeusingnamespacestd;intmain(){ intb=2; intfeibo1=0; intfeibo2=1; cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
2-7
//输出斐波那契数列前40个数,以8*5的格式输出
intb=2;
intfeibo1=0;
intfeibo2=1;
cout< for(inti=1;i<=38;i++) { inta=feibo2; feibo2=feibo1+feibo2; feibo1=a; cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
for(inti=1;i<=38;i++)
inta=feibo2;
feibo2=feibo1+feibo2;
feibo1=a;
cout< b=b+1; if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
b=b+1;
if(b%8==0)cout< } return0;}2-8//统计输入的元音字母个数#includeusingnamespacestd;intmain(){ charzimu; inta,e,i,o,u; a=e=u=i=o=0; begin:cin>>zimu; switch(zimu) { case'a':a++;break; case'e':e++;break; case'i':i++;break; case'o':o++;break; case'u':u++;break; case'#':gotoend; } gotobegin;end:cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
2-8
//统计输入的元音字母个数
charzimu;
inta,e,i,o,u;
a=e=u=i=o=0;
begin:
cin>>zimu;
switch(zimu)
case'a':
a++;break;
case'e':
e++;break;
case'i':
i++;break;
case'o':
o++;break;
case'u':
u++;break;
case'#':
gotobegin;
cout< return0;}2-10//计算5!+6!+7!#includeusingnamespacestd;intmain(){ inti,j; intsum=0; for(i=5;i<=7;i++) { intjiecheng=1; for(j=1;j<=i;j++)jiecheng=jiecheng*j; sum=sum+jiecheng; } cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
2-10
//计算5!
+6!
+7!
inti,j;
intsum=0;
for(i=5;i<=7;i++)
intjiecheng=1;
for(j=1;j<=i;j++)jiecheng=jiecheng*j;
sum=sum+jiecheng;
cout< return0;}2-11//从2开始100个素数#includeusingnamespacestd;intmain(){ intnum=1; intsushu=0; start:; num++; for(inti=2;i<=num;i++) { if(num%i==0)break; } if(i==num) { cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
2-11
//从2开始100个素数
intnum=1;
intsushu=0;
start:
;
num++;
for(inti=2;i<=num;i++)
if(num%i==0)break;
if(i==num)
cout< sushu+=1; } if(sushu!=100)gotostart; return0;}2-12//百钱买百鸡问题#includeusingnamespacestd;intmain(){ intx,y,z; for(x=0;x<=100;x++) { for(y=0;y<=100;y++) { for(z=0;z<=100;z++) if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
sushu+=1;
if(sushu!
=100)gotostart;
2-12
//百钱买百鸡问题
intx,y,z;
for(x=0;x<=100;x++)
for(y=0;y<=100;y++)
for(z=0;z<=100;z++)
if(x+y+z==100&&5*x+3*y+z/3==100&&z%3==0)cout< } }return0;}2-13#includeusingnamespacestd;intmain(){ inta,b,c,d,e; c=0; cin>>a; cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
2-13
inta,b,c,d,e;
c=0;
cout<<"输入"< b=1; e=a*a*a; while(c!=e) { d=b; c=0; for(inti=1;i<=a;i++) { c=c+d; d=d+2; } b=b+2; } //cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
b=1;
e=a*a*a;
while(c!
=e)
d=b;
for(inti=1;i<=a;i++)
c=c+d;
d=d+2;
b=b+2;
//cout< intf=b-4; for(intj=1;j<=a;j++) { f=f+2; cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
intf=b-4;
for(intj=1;j<=a;j++)
f=f+2;
cout< } cout<<"的和\n"; return0;}2-14//输出四方*形状#includeusingnamespacestd;intmain(){ inti,j; for(i=1;i<=9;i++) { j=1; for(j=1;j<=9;j++) { if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*'; elsecout<<''; } cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
cout<<"的和\n";
2-14
//输出四方*形状
for(i=1;i<=9;i++)
j=1;
for(j=1;j<=9;j++)
if(i+j>=6&&i+j<=14&&j-i<=4&&i-j<=4)cout<<'*';
elsecout<<'';
cout< } return0;}3-1-1//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值#includeusingnamespacestd;intmain(){ inta[10]; for(inti=0;i<=9;i++) cin>>a[i]; intmax=a[0],min=a[0],sum=a[0]; for(intj=0;j<=9;j++) { sum=sum+a[j]; max=(max>a[j]?max:a[j]); min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
3-1-1
//向数组a中输入10个整数,求其中的最大值,最小值和10个数的算术平均值
inta[10];
for(inti=0;i<=9;i++)
cin>>a[i];
intmax=a[0],min=a[0],sum=a[0];
for(intj=0;j<=9;j++)
sum=sum+a[j];
max=(max>a[j]?
max:
a[j]);
min=(minmin:a[j]); } doubleave=sum/10.00; cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
min:
doubleave=sum/10.00;
cout< return0; }3-1-2#includeusingnamespacestd;intmain(){ intscore[10]; intsum=0,a=0,b=0; for(inti=0;i<=9;i++) { cin>>score[i]; sum=sum+score[i]; } doubleave=sum/10.0; for(intj=0;j<=9;j++) { if(score[j]>ave)a++; if(score[j]<60)b++; } cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
3-1-2
intscore[10];
intsum=0,a=0,b=0;
cin>>score[i];
sum=sum+score[i];
doubleave=sum/10.0;
if(score[j]>ave)a++;
if(score[j]<60)b++;
cout<<"成绩大于平均值的人数是"< return0;}3-3-1#includeusingnamespacestd;intmain(){ inta[10],sum=0,min,max; doubleave; int*ptoa=a; for(inti=0;i<=9;i++) { cin>>*(a+i); sum+=*(a+i); } min=*(a); max=*(a); for(intj=1;j<=9;j++) { min=(min<*(a+j)?min:*(a+j)); max=(max>*(a+j)?max:*(a+j)); } cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
3-3-1
inta[10],sum=0,min,max;
doubleave;
int*ptoa=a;
cin>>*(a+i);
sum+=*(a+i);
min=*(a);
max=*(a);
for(intj=1;j<=9;j++)
min=(min<*(a+j)?
*(a+j));
max=(max>*(a+j)?
cout< ave=sum/10.0; cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
ave=sum/10.0;
cout< return0;}3-3-2#includeusingnamespacestd;intmain(){ inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数 doubleave=0; //定义平均值 int*ptoa=a; //使用指针 for(inti=0;i<=9;i++) //输入并算和,统计小于60的 { cin>>*(ptoa+i); sum+=*(ptoa+i); if(*(ptoa+i)<60) { j++; } } ave=sum/10.0; //计算平均值 //cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
3-3-2
inta[10],sum=0,j=0,c=0; //定义数组a,sum是各学生成绩之和,j是小于60的个数,c是大于平均值的个数
doubleave=0; //定义平均值
int*ptoa=a; //使用指针
for(inti=0;i<=9;i++) //输入并算和,统计小于60的
cin>>*(ptoa+i);
sum+=*(ptoa+i);
if(*(ptoa+i)<60)
j++;
ave=sum/10.0; //计算平均值
//cout< for(intk=0;k<=9;k++) //计算大于平均值的 { if(*(ptoa+k)>ave) { c++; } } cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
for(intk=0;k<=9;k++) //计算大于平均值的
if(*(ptoa+k)>ave)
c++;
cout< return0;}3-3-3#includeusingnamespacestd;intmain(){ charstring[100]; cin>>string; inti=0,an=0,in=0; cout<<"您输入的字符串"; while(string[i]!='\0') { if(string[i]=='a')an++; if(string[i]=='i')in++; cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
3-3-3
charstring[100];
cin>>string;
inti=0,an=0,in=0;
cout<<"您输入的字符串";
while(string[i]!
='\0')
if(string[i]=='a')an++;
if(string[i]=='i')in++;
cout< i++; } cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
cout< return0;}3-3-3a#includeusingnamespacestd;intmain(){ chara[1
3-3-3a
chara[1
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