C语言重点30题.docx
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C语言重点30题
1.猴子每天都吃全部的1半多1个,到了第10天只剩下1个桃子,求第1天共摘了多少个桃子
main()
{intx1=1,x2,day=9;
while(day>0)
{x2=(x1+1)*2;
x1=x2;
day--;
}
printf("Thetotalis:
%d\n",x1);
2.计算:
1-3+5-7……………-99+101
{inti=1,j=1,s=0;
while(i<=101)
{s+=i*j;
i+=2;
j=-j;
printf("s=%d\n",s);
3.统计正整数的各个数位中零的个数,并求出各数位中的最大者
{intn,count,max,t;
count=0;
max=0;
scanf("%d",&n);
do
{t=n%10;
if(t==0)count++;
elseif(t>max)max=t;
n/=10;
while(n!
=0);
4.用
/4≈1-1/3+1/5-1/7+…公式求
的近似值直到最后一项的绝对值小于10-4为止
#include
{inti=1,j=1;
floatpi=0;
while(fabs(1.0/i*j)>=0.0001)
{pi+=1.0/i*j;
pi*=4;
printf("pi=%f\n",pi);
5.输出所有的水仙花数,所谓水仙花数是指一个三位正整数其各位数字立方和等于该数本身
例如:
153=13+53+33
{inti,a,b,c;
for(i=100;i<=999;i++)
{a=i/100;
b=i%100/10;
c=i%10;
if(a*a*a+b*b*b+c*c*c==i)
printf("%d\n",i);
6.输出斐波那契数列的:
1,1,2,3,5,8,………的前40项,每行4项,即:
F1=1(n=1)
F2=1(n=2)
Fn=Fn-1+Fn-2(n>=3)
{inti;
longf1=1,f2=1;
for(i=1;i<=20;i++)
{printf("%12ld%12ld",f1,f2);
if(i%2==0)printf("\n");
f1=f1+f2;
f2=f1+f2;
7.输入10个整数到一维数组,输出其中最大数和最小数
{inta[10],i,max,min;
for(i=0;i<10;i++)
scanf("%d",&a[i]);
max=a[0];
min=a[0];
for(i=1;i<10;i++)
{if(a[i]>max)
max=a[i];
if(a[i]min=a[i];}printf("max=%d,min=%d\n",max,min);}8.以下程序是利用起泡法对键盘输入的10个整数进行由小到大排序main(){inta[10],i,j,t;for(i=0;i<10;i++)scanf("%d",&a[i]);for(i=0;i<9;i++)for(j=0;j<9-i;j++)if(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}for(i=0;i<10;i++)printf("%4d",a[i]);printf("\n");}9.以下程序是利用起泡法对键盘输入的10个整数进行由小到大排序main(){inta[10],i,j,t;for(i=0;i<10;i++)scanf("%d",&a[i]);for(i=0;i<9;i++)for(j=9;j>i;j--)if(a[j]{t=a[j];a[j]=a[j-1];a[j-1]=t;}for(i=0;i<10;i++)printf("%4d",a[i]);printf("\n");}10.已定义含有30个元素的数组a,函数fun()的功能是按顺序每5个元素求其和,并将该值存放在数组b中#defineN30voidfun(inta[],intb[6]){inti,j=0,s=0;for(i=0;i{s+=a[i];if((i+1)%5==0){b[j++]=s;s=0;}}}main(){inta[N],b[6],i;for(i=0;ia[i]=2*i;fun(a,b);for(i=0;i<6;i++)printf("b[%d]=%d\n",i,b[i]);}11.输入一个字符串,将其倒序后输出main(){inti,j;charst[60],ch;scanf("%s",st);for(i=0,j=strlen(st)-1;i{ch=st[i];st[i]=st[j];st[j]=ch;}printf("%s\n",st);}12.输入字符串,将其中的非数字字符删除后,输出整个字符串main(){charst[80];inti=0,j=0;scanf("%s",st);while(st[i]){if(st[i]>='0'&&st[i]<='9')st[j++]=st[i];i++;}st[j]='\0';printf("%s\n",st);}13.输出方阵中主对角线和、副对角线上元素的和sum1和sum2#defineN3main(){inta[N][N],i,j,sum1,sum2;sum1=sum2=0;for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);for(i=0;i{sum1+=a[i][i];sum2+=a[i][N-1-i];}printf("sum1=%d,sum2=%d\n",sum1,sum2);}14.输出以下的杨辉三角的前10行111121133114641……………………………………………………………main(){inta[10][10],i,j,t;for(i=0;i<10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i<10;i++)for(j=1;ja[i][j]=a[i-1][j]+a[i-1][j-1];for(i=0;i<10;i++){for(j=0;j<=i;j++)printf("%4d",a[i][j]);printf("\n");}}15.写出程序的运行结果voidfun(char*s,intnum[5]){inti;for(i=0;i<5;i++)num[i]=0;while(*s!='\0'){i=-1;switch(*s){case'a':case'A':{i=0;break;}case'e':case'E':{i=1;break;}case'i':case'I':{i=2;break;}case'o':case'O':{i=3;break;}case'u':case'U':{i=4;break;}}if(i>=0)num[i]++;s++;}}main(){chars[80];intnum[5],i;printf("Pleaseinputastring:");gets(s);fun(s,num);printf("Theresultis:\n");for(i=0;i<5;i++)printf("%3d\n",num[i]);}当输入Thisisatree时,显示:Theresultis:1220016.写出程序的运行结果intfun(intn){staticinta=3;intt=0;if(n%2){staticinta=4;t+=a++;}else{staticinta=5;t+=a++;}returnt+=a++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun(i);printf("s=%d\n",s);}运行结果__s=27_______17.写出程序的运行结果intfun(){staticintx=0;intt=0;switch(x){case0:t+=x++;case1:t+=x++;break;case2:t+=x++;case3:t+=x++;break;default:t+=x++;}returnt+=x++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun();printf("s=%d\n",s);}运行结果___s=21_______18.写出程序的运行结果voidfun(intx){if(x/16)fun(x/16);switch(x%16){case15:printf("F");break;case14:printf("E");break;case13:printf("D");break;case12:printf("C");break;case11:printf("B");break;case10:printf("A");break;default:printf("%d",x%16);}}main(){intx;scanf("%d",&x);fun(x);}当输入1978时,显示7BA。19.写出程序的运行结果voidfun(intn){inti;if(n!=0){fun(n-1);for(i=1;i<=n;i++)printf("%d",n);printf("\n");}}main(){intn;scanf("%d",&n);fun(n);}当输入5时,显示:12233344445555520.写出程序的运行结果#includevoidfun(chars[]){inti,j;charch;for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
min=a[i];
printf("max=%d,min=%d\n",max,min);
8.以下程序是利用起泡法对键盘输入的10个整数进行由小到大排序
{inta[10],i,j,t;
for(i=0;i<9;i++)
for(j=0;j<9-i;j++)
if(a[j]>a[j+1])
{t=a[j];a[j]=a[j+1];a[j+1]=t;}
printf("%4d",a[i]);
printf("\n");
9.以下程序是利用起泡法对键盘输入的10个整数进行由小到大排序
for(j=9;j>i;j--)
if(a[j]{t=a[j];a[j]=a[j-1];a[j-1]=t;}for(i=0;i<10;i++)printf("%4d",a[i]);printf("\n");}10.已定义含有30个元素的数组a,函数fun()的功能是按顺序每5个元素求其和,并将该值存放在数组b中#defineN30voidfun(inta[],intb[6]){inti,j=0,s=0;for(i=0;i{s+=a[i];if((i+1)%5==0){b[j++]=s;s=0;}}}main(){inta[N],b[6],i;for(i=0;ia[i]=2*i;fun(a,b);for(i=0;i<6;i++)printf("b[%d]=%d\n",i,b[i]);}11.输入一个字符串,将其倒序后输出main(){inti,j;charst[60],ch;scanf("%s",st);for(i=0,j=strlen(st)-1;i{ch=st[i];st[i]=st[j];st[j]=ch;}printf("%s\n",st);}12.输入字符串,将其中的非数字字符删除后,输出整个字符串main(){charst[80];inti=0,j=0;scanf("%s",st);while(st[i]){if(st[i]>='0'&&st[i]<='9')st[j++]=st[i];i++;}st[j]='\0';printf("%s\n",st);}13.输出方阵中主对角线和、副对角线上元素的和sum1和sum2#defineN3main(){inta[N][N],i,j,sum1,sum2;sum1=sum2=0;for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);for(i=0;i{sum1+=a[i][i];sum2+=a[i][N-1-i];}printf("sum1=%d,sum2=%d\n",sum1,sum2);}14.输出以下的杨辉三角的前10行111121133114641……………………………………………………………main(){inta[10][10],i,j,t;for(i=0;i<10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i<10;i++)for(j=1;ja[i][j]=a[i-1][j]+a[i-1][j-1];for(i=0;i<10;i++){for(j=0;j<=i;j++)printf("%4d",a[i][j]);printf("\n");}}15.写出程序的运行结果voidfun(char*s,intnum[5]){inti;for(i=0;i<5;i++)num[i]=0;while(*s!='\0'){i=-1;switch(*s){case'a':case'A':{i=0;break;}case'e':case'E':{i=1;break;}case'i':case'I':{i=2;break;}case'o':case'O':{i=3;break;}case'u':case'U':{i=4;break;}}if(i>=0)num[i]++;s++;}}main(){chars[80];intnum[5],i;printf("Pleaseinputastring:");gets(s);fun(s,num);printf("Theresultis:\n");for(i=0;i<5;i++)printf("%3d\n",num[i]);}当输入Thisisatree时,显示:Theresultis:1220016.写出程序的运行结果intfun(intn){staticinta=3;intt=0;if(n%2){staticinta=4;t+=a++;}else{staticinta=5;t+=a++;}returnt+=a++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun(i);printf("s=%d\n",s);}运行结果__s=27_______17.写出程序的运行结果intfun(){staticintx=0;intt=0;switch(x){case0:t+=x++;case1:t+=x++;break;case2:t+=x++;case3:t+=x++;break;default:t+=x++;}returnt+=x++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun();printf("s=%d\n",s);}运行结果___s=21_______18.写出程序的运行结果voidfun(intx){if(x/16)fun(x/16);switch(x%16){case15:printf("F");break;case14:printf("E");break;case13:printf("D");break;case12:printf("C");break;case11:printf("B");break;case10:printf("A");break;default:printf("%d",x%16);}}main(){intx;scanf("%d",&x);fun(x);}当输入1978时,显示7BA。19.写出程序的运行结果voidfun(intn){inti;if(n!=0){fun(n-1);for(i=1;i<=n;i++)printf("%d",n);printf("\n");}}main(){intn;scanf("%d",&n);fun(n);}当输入5时,显示:12233344445555520.写出程序的运行结果#includevoidfun(chars[]){inti,j;charch;for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{t=a[j];a[j]=a[j-1];a[j-1]=t;}
10.已定义含有30个元素的数组a,函数fun()的功能是按顺序每5个元素求其和,并将该值存放在数组b中
#defineN30
voidfun(inta[],intb[6])
{inti,j=0,s=0;
for(i=0;i{s+=a[i];if((i+1)%5==0){b[j++]=s;s=0;}}}main(){inta[N],b[6],i;for(i=0;ia[i]=2*i;fun(a,b);for(i=0;i<6;i++)printf("b[%d]=%d\n",i,b[i]);}11.输入一个字符串,将其倒序后输出main(){inti,j;charst[60],ch;scanf("%s",st);for(i=0,j=strlen(st)-1;i{ch=st[i];st[i]=st[j];st[j]=ch;}printf("%s\n",st);}12.输入字符串,将其中的非数字字符删除后,输出整个字符串main(){charst[80];inti=0,j=0;scanf("%s",st);while(st[i]){if(st[i]>='0'&&st[i]<='9')st[j++]=st[i];i++;}st[j]='\0';printf("%s\n",st);}13.输出方阵中主对角线和、副对角线上元素的和sum1和sum2#defineN3main(){inta[N][N],i,j,sum1,sum2;sum1=sum2=0;for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);for(i=0;i{sum1+=a[i][i];sum2+=a[i][N-1-i];}printf("sum1=%d,sum2=%d\n",sum1,sum2);}14.输出以下的杨辉三角的前10行111121133114641……………………………………………………………main(){inta[10][10],i,j,t;for(i=0;i<10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i<10;i++)for(j=1;ja[i][j]=a[i-1][j]+a[i-1][j-1];for(i=0;i<10;i++){for(j=0;j<=i;j++)printf("%4d",a[i][j]);printf("\n");}}15.写出程序的运行结果voidfun(char*s,intnum[5]){inti;for(i=0;i<5;i++)num[i]=0;while(*s!='\0'){i=-1;switch(*s){case'a':case'A':{i=0;break;}case'e':case'E':{i=1;break;}case'i':case'I':{i=2;break;}case'o':case'O':{i=3;break;}case'u':case'U':{i=4;break;}}if(i>=0)num[i]++;s++;}}main(){chars[80];intnum[5],i;printf("Pleaseinputastring:");gets(s);fun(s,num);printf("Theresultis:\n");for(i=0;i<5;i++)printf("%3d\n",num[i]);}当输入Thisisatree时,显示:Theresultis:1220016.写出程序的运行结果intfun(intn){staticinta=3;intt=0;if(n%2){staticinta=4;t+=a++;}else{staticinta=5;t+=a++;}returnt+=a++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun(i);printf("s=%d\n",s);}运行结果__s=27_______17.写出程序的运行结果intfun(){staticintx=0;intt=0;switch(x){case0:t+=x++;case1:t+=x++;break;case2:t+=x++;case3:t+=x++;break;default:t+=x++;}returnt+=x++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun();printf("s=%d\n",s);}运行结果___s=21_______18.写出程序的运行结果voidfun(intx){if(x/16)fun(x/16);switch(x%16){case15:printf("F");break;case14:printf("E");break;case13:printf("D");break;case12:printf("C");break;case11:printf("B");break;case10:printf("A");break;default:printf("%d",x%16);}}main(){intx;scanf("%d",&x);fun(x);}当输入1978时,显示7BA。19.写出程序的运行结果voidfun(intn){inti;if(n!=0){fun(n-1);for(i=1;i<=n;i++)printf("%d",n);printf("\n");}}main(){intn;scanf("%d",&n);fun(n);}当输入5时,显示:12233344445555520.写出程序的运行结果#includevoidfun(chars[]){inti,j;charch;for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{s+=a[i];
if((i+1)%5==0)
{b[j++]=s;
s=0;
{inta[N],b[6],i;
for(i=0;ia[i]=2*i;fun(a,b);for(i=0;i<6;i++)printf("b[%d]=%d\n",i,b[i]);}11.输入一个字符串,将其倒序后输出main(){inti,j;charst[60],ch;scanf("%s",st);for(i=0,j=strlen(st)-1;i{ch=st[i];st[i]=st[j];st[j]=ch;}printf("%s\n",st);}12.输入字符串,将其中的非数字字符删除后,输出整个字符串main(){charst[80];inti=0,j=0;scanf("%s",st);while(st[i]){if(st[i]>='0'&&st[i]<='9')st[j++]=st[i];i++;}st[j]='\0';printf("%s\n",st);}13.输出方阵中主对角线和、副对角线上元素的和sum1和sum2#defineN3main(){inta[N][N],i,j,sum1,sum2;sum1=sum2=0;for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);for(i=0;i{sum1+=a[i][i];sum2+=a[i][N-1-i];}printf("sum1=%d,sum2=%d\n",sum1,sum2);}14.输出以下的杨辉三角的前10行111121133114641……………………………………………………………main(){inta[10][10],i,j,t;for(i=0;i<10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i<10;i++)for(j=1;ja[i][j]=a[i-1][j]+a[i-1][j-1];for(i=0;i<10;i++){for(j=0;j<=i;j++)printf("%4d",a[i][j]);printf("\n");}}15.写出程序的运行结果voidfun(char*s,intnum[5]){inti;for(i=0;i<5;i++)num[i]=0;while(*s!='\0'){i=-1;switch(*s){case'a':case'A':{i=0;break;}case'e':case'E':{i=1;break;}case'i':case'I':{i=2;break;}case'o':case'O':{i=3;break;}case'u':case'U':{i=4;break;}}if(i>=0)num[i]++;s++;}}main(){chars[80];intnum[5],i;printf("Pleaseinputastring:");gets(s);fun(s,num);printf("Theresultis:\n");for(i=0;i<5;i++)printf("%3d\n",num[i]);}当输入Thisisatree时,显示:Theresultis:1220016.写出程序的运行结果intfun(intn){staticinta=3;intt=0;if(n%2){staticinta=4;t+=a++;}else{staticinta=5;t+=a++;}returnt+=a++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun(i);printf("s=%d\n",s);}运行结果__s=27_______17.写出程序的运行结果intfun(){staticintx=0;intt=0;switch(x){case0:t+=x++;case1:t+=x++;break;case2:t+=x++;case3:t+=x++;break;default:t+=x++;}returnt+=x++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun();printf("s=%d\n",s);}运行结果___s=21_______18.写出程序的运行结果voidfun(intx){if(x/16)fun(x/16);switch(x%16){case15:printf("F");break;case14:printf("E");break;case13:printf("D");break;case12:printf("C");break;case11:printf("B");break;case10:printf("A");break;default:printf("%d",x%16);}}main(){intx;scanf("%d",&x);fun(x);}当输入1978时,显示7BA。19.写出程序的运行结果voidfun(intn){inti;if(n!=0){fun(n-1);for(i=1;i<=n;i++)printf("%d",n);printf("\n");}}main(){intn;scanf("%d",&n);fun(n);}当输入5时,显示:12233344445555520.写出程序的运行结果#includevoidfun(chars[]){inti,j;charch;for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
a[i]=2*i;
fun(a,b);
for(i=0;i<6;i++)
printf("b[%d]=%d\n",i,b[i]);
11.输入一个字符串,将其倒序后输出
{inti,j;
charst[60],ch;
scanf("%s",st);
for(i=0,j=strlen(st)-1;i{ch=st[i];st[i]=st[j];st[j]=ch;}printf("%s\n",st);}12.输入字符串,将其中的非数字字符删除后,输出整个字符串main(){charst[80];inti=0,j=0;scanf("%s",st);while(st[i]){if(st[i]>='0'&&st[i]<='9')st[j++]=st[i];i++;}st[j]='\0';printf("%s\n",st);}13.输出方阵中主对角线和、副对角线上元素的和sum1和sum2#defineN3main(){inta[N][N],i,j,sum1,sum2;sum1=sum2=0;for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);for(i=0;i{sum1+=a[i][i];sum2+=a[i][N-1-i];}printf("sum1=%d,sum2=%d\n",sum1,sum2);}14.输出以下的杨辉三角的前10行111121133114641……………………………………………………………main(){inta[10][10],i,j,t;for(i=0;i<10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i<10;i++)for(j=1;ja[i][j]=a[i-1][j]+a[i-1][j-1];for(i=0;i<10;i++){for(j=0;j<=i;j++)printf("%4d",a[i][j]);printf("\n");}}15.写出程序的运行结果voidfun(char*s,intnum[5]){inti;for(i=0;i<5;i++)num[i]=0;while(*s!='\0'){i=-1;switch(*s){case'a':case'A':{i=0;break;}case'e':case'E':{i=1;break;}case'i':case'I':{i=2;break;}case'o':case'O':{i=3;break;}case'u':case'U':{i=4;break;}}if(i>=0)num[i]++;s++;}}main(){chars[80];intnum[5],i;printf("Pleaseinputastring:");gets(s);fun(s,num);printf("Theresultis:\n");for(i=0;i<5;i++)printf("%3d\n",num[i]);}当输入Thisisatree时,显示:Theresultis:1220016.写出程序的运行结果intfun(intn){staticinta=3;intt=0;if(n%2){staticinta=4;t+=a++;}else{staticinta=5;t+=a++;}returnt+=a++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun(i);printf("s=%d\n",s);}运行结果__s=27_______17.写出程序的运行结果intfun(){staticintx=0;intt=0;switch(x){case0:t+=x++;case1:t+=x++;break;case2:t+=x++;case3:t+=x++;break;default:t+=x++;}returnt+=x++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun();printf("s=%d\n",s);}运行结果___s=21_______18.写出程序的运行结果voidfun(intx){if(x/16)fun(x/16);switch(x%16){case15:printf("F");break;case14:printf("E");break;case13:printf("D");break;case12:printf("C");break;case11:printf("B");break;case10:printf("A");break;default:printf("%d",x%16);}}main(){intx;scanf("%d",&x);fun(x);}当输入1978时,显示7BA。19.写出程序的运行结果voidfun(intn){inti;if(n!=0){fun(n-1);for(i=1;i<=n;i++)printf("%d",n);printf("\n");}}main(){intn;scanf("%d",&n);fun(n);}当输入5时,显示:12233344445555520.写出程序的运行结果#includevoidfun(chars[]){inti,j;charch;for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{ch=st[i];
st[i]=st[j];
st[j]=ch;
printf("%s\n",st);
12.输入字符串,将其中的非数字字符删除后,输出整个字符串
{charst[80];
inti=0,j=0;
while(st[i])
{if(st[i]>='0'&&st[i]<='9')
st[j++]=st[i];
i++;
st[j]='\0';
13.输出方阵中主对角线和、副对角线上元素的和sum1和sum2
#defineN3
{inta[N][N],i,j,sum1,sum2;
sum1=sum2=0;
for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);for(i=0;i{sum1+=a[i][i];sum2+=a[i][N-1-i];}printf("sum1=%d,sum2=%d\n",sum1,sum2);}14.输出以下的杨辉三角的前10行111121133114641……………………………………………………………main(){inta[10][10],i,j,t;for(i=0;i<10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i<10;i++)for(j=1;ja[i][j]=a[i-1][j]+a[i-1][j-1];for(i=0;i<10;i++){for(j=0;j<=i;j++)printf("%4d",a[i][j]);printf("\n");}}15.写出程序的运行结果voidfun(char*s,intnum[5]){inti;for(i=0;i<5;i++)num[i]=0;while(*s!='\0'){i=-1;switch(*s){case'a':case'A':{i=0;break;}case'e':case'E':{i=1;break;}case'i':case'I':{i=2;break;}case'o':case'O':{i=3;break;}case'u':case'U':{i=4;break;}}if(i>=0)num[i]++;s++;}}main(){chars[80];intnum[5],i;printf("Pleaseinputastring:");gets(s);fun(s,num);printf("Theresultis:\n");for(i=0;i<5;i++)printf("%3d\n",num[i]);}当输入Thisisatree时,显示:Theresultis:1220016.写出程序的运行结果intfun(intn){staticinta=3;intt=0;if(n%2){staticinta=4;t+=a++;}else{staticinta=5;t+=a++;}returnt+=a++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun(i);printf("s=%d\n",s);}运行结果__s=27_______17.写出程序的运行结果intfun(){staticintx=0;intt=0;switch(x){case0:t+=x++;case1:t+=x++;break;case2:t+=x++;case3:t+=x++;break;default:t+=x++;}returnt+=x++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun();printf("s=%d\n",s);}运行结果___s=21_______18.写出程序的运行结果voidfun(intx){if(x/16)fun(x/16);switch(x%16){case15:printf("F");break;case14:printf("E");break;case13:printf("D");break;case12:printf("C");break;case11:printf("B");break;case10:printf("A");break;default:printf("%d",x%16);}}main(){intx;scanf("%d",&x);fun(x);}当输入1978时,显示7BA。19.写出程序的运行结果voidfun(intn){inti;if(n!=0){fun(n-1);for(i=1;i<=n;i++)printf("%d",n);printf("\n");}}main(){intn;scanf("%d",&n);fun(n);}当输入5时,显示:12233344445555520.写出程序的运行结果#includevoidfun(chars[]){inti,j;charch;for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
for(j=0;jscanf("%d",&a[i][j]);for(i=0;i{sum1+=a[i][i];sum2+=a[i][N-1-i];}printf("sum1=%d,sum2=%d\n",sum1,sum2);}14.输出以下的杨辉三角的前10行111121133114641……………………………………………………………main(){inta[10][10],i,j,t;for(i=0;i<10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i<10;i++)for(j=1;ja[i][j]=a[i-1][j]+a[i-1][j-1];for(i=0;i<10;i++){for(j=0;j<=i;j++)printf("%4d",a[i][j]);printf("\n");}}15.写出程序的运行结果voidfun(char*s,intnum[5]){inti;for(i=0;i<5;i++)num[i]=0;while(*s!='\0'){i=-1;switch(*s){case'a':case'A':{i=0;break;}case'e':case'E':{i=1;break;}case'i':case'I':{i=2;break;}case'o':case'O':{i=3;break;}case'u':case'U':{i=4;break;}}if(i>=0)num[i]++;s++;}}main(){chars[80];intnum[5],i;printf("Pleaseinputastring:");gets(s);fun(s,num);printf("Theresultis:\n");for(i=0;i<5;i++)printf("%3d\n",num[i]);}当输入Thisisatree时,显示:Theresultis:1220016.写出程序的运行结果intfun(intn){staticinta=3;intt=0;if(n%2){staticinta=4;t+=a++;}else{staticinta=5;t+=a++;}returnt+=a++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun(i);printf("s=%d\n",s);}运行结果__s=27_______17.写出程序的运行结果intfun(){staticintx=0;intt=0;switch(x){case0:t+=x++;case1:t+=x++;break;case2:t+=x++;case3:t+=x++;break;default:t+=x++;}returnt+=x++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun();printf("s=%d\n",s);}运行结果___s=21_______18.写出程序的运行结果voidfun(intx){if(x/16)fun(x/16);switch(x%16){case15:printf("F");break;case14:printf("E");break;case13:printf("D");break;case12:printf("C");break;case11:printf("B");break;case10:printf("A");break;default:printf("%d",x%16);}}main(){intx;scanf("%d",&x);fun(x);}当输入1978时,显示7BA。19.写出程序的运行结果voidfun(intn){inti;if(n!=0){fun(n-1);for(i=1;i<=n;i++)printf("%d",n);printf("\n");}}main(){intn;scanf("%d",&n);fun(n);}当输入5时,显示:12233344445555520.写出程序的运行结果#includevoidfun(chars[]){inti,j;charch;for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
scanf("%d",&a[i][j]);
for(i=0;i{sum1+=a[i][i];sum2+=a[i][N-1-i];}printf("sum1=%d,sum2=%d\n",sum1,sum2);}14.输出以下的杨辉三角的前10行111121133114641……………………………………………………………main(){inta[10][10],i,j,t;for(i=0;i<10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i<10;i++)for(j=1;ja[i][j]=a[i-1][j]+a[i-1][j-1];for(i=0;i<10;i++){for(j=0;j<=i;j++)printf("%4d",a[i][j]);printf("\n");}}15.写出程序的运行结果voidfun(char*s,intnum[5]){inti;for(i=0;i<5;i++)num[i]=0;while(*s!='\0'){i=-1;switch(*s){case'a':case'A':{i=0;break;}case'e':case'E':{i=1;break;}case'i':case'I':{i=2;break;}case'o':case'O':{i=3;break;}case'u':case'U':{i=4;break;}}if(i>=0)num[i]++;s++;}}main(){chars[80];intnum[5],i;printf("Pleaseinputastring:");gets(s);fun(s,num);printf("Theresultis:\n");for(i=0;i<5;i++)printf("%3d\n",num[i]);}当输入Thisisatree时,显示:Theresultis:1220016.写出程序的运行结果intfun(intn){staticinta=3;intt=0;if(n%2){staticinta=4;t+=a++;}else{staticinta=5;t+=a++;}returnt+=a++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun(i);printf("s=%d\n",s);}运行结果__s=27_______17.写出程序的运行结果intfun(){staticintx=0;intt=0;switch(x){case0:t+=x++;case1:t+=x++;break;case2:t+=x++;case3:t+=x++;break;default:t+=x++;}returnt+=x++;}main(){inti,s=0;for(i=0;i<3;i++)s+=fun();printf("s=%d\n",s);}运行结果___s=21_______18.写出程序的运行结果voidfun(intx){if(x/16)fun(x/16);switch(x%16){case15:printf("F");break;case14:printf("E");break;case13:printf("D");break;case12:printf("C");break;case11:printf("B");break;case10:printf("A");break;default:printf("%d",x%16);}}main(){intx;scanf("%d",&x);fun(x);}当输入1978时,显示7BA。19.写出程序的运行结果voidfun(intn){inti;if(n!=0){fun(n-1);for(i=1;i<=n;i++)printf("%d",n);printf("\n");}}main(){intn;scanf("%d",&n);fun(n);}当输入5时,显示:12233344445555520.写出程序的运行结果#includevoidfun(chars[]){inti,j;charch;for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{sum1+=a[i][i];
sum2+=a[i][N-1-i];
printf("sum1=%d,sum2=%d\n",sum1,sum2);
14.输出以下的杨辉三角的前10行
1
11
121
1331
14641
……………………………
………………………………
{inta[10][10],i,j,t;
{a[i][0]=1;a[i][i]=1;}
for(i=2;i<10;i++)
for(j=1;j
a[i][j]=a[i-1][j]+a[i-1][j-1];
{for(j=0;j<=i;j++)
printf("%4d",a[i][j]);
15.写出程序的运行结果
voidfun(char*s,intnum[5])
for(i=0;i<5;i++)
num[i]=0;
while(*s!
='\0')
{i=-1;
switch(*s)
{case'a':
case'A':
{i=0;break;}
case'e':
case'E':
{i=1;break;}
case'i':
case'I':
{i=2;break;}
case'o':
case'O':
{i=3;break;}
case'u':
case'U':
{i=4;break;}
if(i>=0)num[i]++;
s++;
{chars[80];
intnum[5],i;
printf("Pleaseinputastring:
");
gets(s);
fun(s,num);
printf("Theresultis:
\n");
printf("%3d\n",num[i]);
当输入Thisisatree时,显示:
Theresultis:
2
0
16.写出程序的运行结果
intfun(intn)
{staticinta=3;
intt=0;
if(n%2)
{staticinta=4;
t+=a++;
else
{staticinta=5;
returnt+=a++;
{inti,s=0;
for(i=0;i<3;i++)
s+=fun(i);
运行结果__s=27_______
17.写出程序的运行结果
intfun()
{staticintx=0;
switch(x)
{case0:
t+=x++;
case1:
t+=x++;break;
case2:
case3:
default:
returnt+=x++;
s+=fun();
运行结果___s=21_______
18.写出程序的运行结果
voidfun(intx)
{if(x/16)fun(x/16);
switch(x%16)
{case15:
printf("F");break;
case14:
printf("E");break;
case13:
printf("D");break;
case12:
printf("C");break;
case11:
printf("B");break;
case10:
printf("A");break;
printf("%d",x%16);
{intx;
scanf("%d",&x);
fun(x);
当输入1978时,显示7BA。
19.写出程序的运行结果
voidfun(intn)
if(n!
=0)
{fun(n-1);
for(i=1;i<=n;i++)
printf("%d",n);
{intn;
fun(n);
当输入5时,显示:
22
333
4444
55555
20.写出程序的运行结果
voidfun(chars[])
charch;
for(i=0,j=strlen(s)-1;i{ch=s[i];s[i]=s[j];s[j]=ch;}}main(){chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};inti;printf("Theoldarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);for(i=0;i<3;i++)fun(s[i]);printf("Thenewarrayis:\n");for(i=0;i<3;i++)printf("\"%s\"\n",s[i]);}Theoldarrayis:"ABCD""EFG""HI"Thenewarrayis:"DCBA""GFE""IH"21.写出程序的运行结果。voidfun(inta[],inti,intj){intt;if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{ch=s[i];
s[i]=s[j];
s[j]=ch;
{chars[3][5]={{'A','B','C','D'},{'E','F','G'},{'H','I'}};
inti;
printf("Theoldarrayis:
printf("\"%s\"\n",s[i]);
fun(s[i]);
printf("Thenewarrayis:
Theoldarrayis:
"ABCD"
"EFG"
"HI"
Thenewarrayis:
"DCBA"
"GFE"
"IH"
21.写出程序的运行结果。
voidfun(inta[],inti,intj)
{intt;
if(i{t=a[i];a[i]=a[j];a[j]=t;i++;j--;fun(a,i,j);}}main(){inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};inti,j;printf("Theoldarrayis:\n");for(i=0;i<3;i++){for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}printf("Thenewarrayis:\n");for(i=0;i<3;i++){fun(a[i],0,3);for(j=0;j<4;j++)printf("%3d",a[i][j]);printf("\n");}}Theoldarrayis:123445607800Thenewarrayis:43210654008722.写出程序的运行结果。voidsort(inta[],intn){inti,j,t;for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{t=a[i];
a[i]=a[j];
a[j]=t;
j--;
fun(a,i,j);
{inta[3][4]={{1,2,3,4},{4,5,6},{7,8}};
inti,j;
{for(j=0;j<4;j++)
printf("%3d",a[i][j]);
{fun(a[i],0,3);
for(j=0;j<4;j++)
1234
4560
7800
4321
0654
0087
22.写出程序的运行结果。
voidsort(inta[],intn)
{inti,j,t;
for(i=0;ifor(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
for(j=0;jif(a[j]>a[j+1]){t=a[j];a[j]=a[j+1];a[j+1]=t;}}main(){inta[5]={5,2,6},i;printf("Theoldarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");sort(a,5);printf("Thesortedarrayis:\n");for(i=0;i<5;i++)printf("%3d",a[i]);printf("\n");}Theoldarrayis:52600Thesortedarrayis:0025623.写出程序的运行结果#defineMAX5inta[MAX];voidsub1(){inti;for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{t=a[j];
a[j]=a[j+1];
a[j+1]=t;
{inta[5]={5,2,6},i;
printf("%3d",a[i]);
sort(a,5);
printf("Thesortedarrayis:
52600
Thesortedarrayis:
00256
23.写出程序的运行结果
#defineMAX5
inta[MAX];
voidsub1()
for(i=0;ia[i]=i+i;}voidsub2(){inta[MAX],i;for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
a[i]=i+i;
voidsub2()
{inta[MAX],i;
for(i=0;ia[i]=i;}voidsub3(){inti;for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
a[i]=i;
voidsub3()
for(i=0;iprintf("%3d",a[i]);printf("\n");}main(){sub1();sub3();sub2();sub3();}运行结果:024680246824.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0intfun(intx){inti,t=1;for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{sub1();
sub3();
sub2();
运行结果:
02468
24.编写一函数fun(),判断形参x是否为素数,若是素数返回1,否则返回0
intfun(intx)
{inti,t=1;
for(i=2;iif(x%i==0)t=0;returnt;}main(){intx;scanf("%d",&x);if(fun(x))printf("Yes!\n");elseprintf("No!\n");}25.编写一函数fun(),返回数组a中的最大值,要求:必须利用指针形式访问数组intfun(int*a,intn){inti,max;max=*a;for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
if(x%i==0)t=0;
returnt;
if(fun(x))printf("Yes!
elseprintf("No!
25.编写一函数fun(),返回数组a中的最大值,要求:
必须利用指针形式访问数组
intfun(int*a,intn)
{inti,max;
max=*a;
for(i=1;iif(*(a+i)>max)max=*(a+i);returnmax;}main(){inta[]={3,7,2,9,4,5},max;max=fun(a,6);printf("max=%d\n",max);}26.编写一函数fun(),将字符串中的数字字符删除voidfun(chars[]){inti,j=0;for(i=0;s[i]!='\0';i++)if(!(s[i]>='0'&&s[i]<='9'))s[j++]=s[i];s[j]='\0';}main(){chars[80];printf("Pleaseinputastring(s):");gets(s);fun(s);printf("s=%s\n",s);}27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量输出结果:0123456789024680123456789#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
if(*(a+i)>max)max=*(a+i);
returnmax;
{inta[]={3,7,2,9,4,5},max;
max=fun(a,6);
printf("max=%d\n",max);
26.编写一函数fun(),将字符串中的数字字符删除
{inti,j=0;
for(i=0;s[i]!
='\0';i++)
if(!
(s[i]>='0'&&s[i]<='9'))
s[j++]=s[i];
s[j]='\0';
printf("Pleaseinputastring(s):
fun(s);
printf("s=%s\n",s);
27.编写主函数main(),完成以下输出结果,要求必须利用以给出的三个函数,不允许设置变量
输出结果:
0123456789
#defineMAX10
for(i=0;i}voidsub2(intmax){inti;for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
voidsub2(intmax)
for(i=0;i}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
voidsub3(intb[],intmax)
for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(MAX/2);sub3(a,MAX/2)sub1();sub3(a,MAX);}28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
sub3(a,MAX);
sub2(MAX/2);
sub3(a,MAX/2)
sub1();
28.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量
43210
98765
for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
voidsub2(inta[],intmax)
for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
{t=a[i];a[i]=a[j];a[j]=t;}
for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub3(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a+MAX/2,MAX/2);}29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量输出结果:01234567894321098765#defineMAX10inta[MAX];voidsub1(){inti;for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
sub2(a,MAX/2);
sub3(a,MAX/2);
sub2(a+MAX/2,MAX/2);
sub3(a+MAX/2,MAX/2);
29.编写主函数main(),完成以下输出结果,要求必须利用给出的三个函数,不允许设置变量
4321098765
for(i=0;i}voidsub2(inta[],intmax){inti,j,t;for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
for(i=0,j=max-1;i{t=a[i];a[i]=a[j];a[j]=t;}}voidsub3(intb[],intmax){inti;for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
for(i=0;iprintf("\n");}main(){sub1();sub3(a,MAX);sub2(a,MAX/2);sub2(a+MAX/2,MAX/2);sub3(a,MAX);}30.编写一函数fun(),返回3×4二维数组的最大值intfun(inta[3][4]){inti,j,max=a[0][0];for(i=0;i<3;i++)for(j=0;j<4;j++)if(a[i][j]>max)max=a[i][j];returnmax;}main(){inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};intmax;max=fun(a);printf("max=%d\n",max);}
30.编写一函数fun(),返回3×4二维数组的最大值
intfun(inta[3][4])
{inti,j,max=a[0][0];
if(a[i][j]>max)max=a[i][j];
{inta[3][4]={{1,4,7,10},{2,5,8,11},{3,6,9,12}};
intmax;
max=fun(a);
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