计算机二级C真题附答案后面.docx

1、计算机二级C真题附答案后面二级C语言上机考试复习资料（共60套题目）第1套1、程序填空题 #include void fun(char *s, int *t) int i, n; n=0;/*found*/ for(i=0; _1_ !=0; i+)/*found*/ if(si=0&si= _2_ ) n+;/*found*/ _3_ ;main() char s80=abcdef35adgh3kjsdf7; int t; printf(nThe original string is : %sn,s); fun(s,&t); printf(nThe result is : %dn,t);2、

2、程序修改题#include int fun(int *x,int y) int t ;/*found*/ t = x ; x = y ;/*found*/ return(y) ;main() int a = 3, b = 8 ; printf(%d %dn, a, b) ; b = fun(&a, b) ; printf(%d %dn, a, b) ;3、程序设计题#include void fun (int *a, int *n)main( ) int aa1000, n, k ; fun ( aa, &n ) ; for ( k = 0 ; k n ; k+ ) if(k + 1) % 1

3、0 = 0) printf(n) ; else printf(%5d, aak) ;第2套 1、程序填空题 #include void fun(char *s, char *p) int i, j, n, x, t; n=0; for(i=0; si!=0; i+) n+; for(i=1; in-2; i=i+2) /*found*/ _1_;/*found*/ for(j=_2_+2 ; jsj) t=j; if(t!=i) x=si; si=st; st=x; for(i=1,j=0; in; i=i+2, j+) pj=si;/*found*/ pj=_3_;main() char s

4、80=baawrskjghzlicda, p50; printf(nThe original string is : %sn,s); fun(s,p); printf(nThe result is : %sn,p);2、程序修改题#include #include float fun ( float num ) int s ; float n, t, pi ; t = 1 ; pi = 0 ; n = 1 ; s = 1 ;/*found*/ while(t = num) pi = pi + t ; n = n + 2 ; s = -s ;/*found*/ t = s % n ; pi =

5、pi * 4 ; return pi ;main( ) float n1, n2 ; printf(Enter a float number: ) ; scanf(%f, &n1) ; n2 = fun(n1) ; printf(%6.4fn, n2) ;3、程序设计题#include #include #define LEN 20void fun (char a, char b, int n)main( ) char str1LEN, str2LEN ; int n ; printf(Enter the string:n) ; gets(str1) ; printf(Enter the in

6、dex of the char deleted:) ; scanf(%d, &n) ; fun(str1, str2, n) ; printf(The new string is: %sn, str2) ;第3套1、程序填空题 #include #include #define N 5typedef struct node int data; struct node *next; NODE;void fun(NODE *h) NODE *p, *q, *r;/*found*/ p = h-_1_;/*found*/ if (p=_2_) return; q = p-next; p-next =

7、 NULL; while (q) r = q-next; q-next = p;/*found*/ p = q; q = _3_; h-next = p;NODE *creatlist(int a) NODE *h,*p,*q; int i; h = (NODE *)malloc(sizeof(NODE); h-next = NULL; for(i=0; idata=ai; q-next = NULL; if (h-next = NULL) h-next = p = q; else p-next = q; p = q; return h;void outlist(NODE *h) NODE *

8、p; p = h-next; if (p=NULL) printf(The list is NULL!n); else printf(nHead ); do printf(-%d, p-data); p=p-next; while(p!=NULL); printf(-Endn); main() NODE *head; int aN=2,4,6,8,10; head=creatlist(a); printf(nThe original list:n); outlist(head); fun(head); printf(nThe list after inverting :n); outlist(

9、head);2、程序修改题#include #include #define N 80int fun(char *s, char *t) int n; char *p , *r; n=0; while ( *s ) p=s;/*found*/ r=p; while(*r) if(*r=*p) r+; p+; else break;/*found*/ if(*r= 0) n+; s+; return n;main() char aN,bN; int m; printf(nPlease enter string a : ); gets(a); printf(nPlease enter substr

10、ing b : ); gets( b ); m=fun(a, b); printf(nThe result is : m = %dn,m);3、程序设计题#include #include #define M 3#define N 20void fun(char aMN, char *b) /* 以下代码仅供参考 */ int i; *b=0;main() char wMN=AAAA,BBBBBBB,CC, a100; printf(The string:n); for(i=0; iM; i+)puts(wi); printf(n); fun(w,a); printf(The A string

11、:n); printf(%s,a);printf(nn);第4套1、程序填空题 #include #define N 4void fun(int (*t)N) int i, j, x;/*found*/ for(i=0; i=1; j-) tij=tij-1;/*found*/ ti_3_=x; main() int tN=21,12,13,24,25,16,47,38,29,11,32,54,42,21,33,10, i, j; printf(The original array:n); for(i=0; iN; i+) for(j=0; jN; j+) printf(%2d ,tij);

12、printf(n); fun(t); printf(nThe result is:n); for(i=0; iN; i+) for(j=0; jN; j+) printf(%2d ,tij); printf(n); 2、程序修改题#include double fun( double q ) int n; double s,t; n = 2; s = 2.0; while (s=q) t=s;/*found*/ s=s+(n+1)/n; n+; printf(n=%dn,n);/*found*/ return s;main ( ) printf(%fn, fun(50);3、程序设计题#inc

13、lude #include int fun( int t)main() /* 主函数 */ int n; n=1000; printf(n = %d, f = %dn,n, fun(n);第5套1、程序填空题 #include #include #include int fun(char *s) char *lp,*rp;/*found*/ lp= _1_ ; rp=s+strlen(s)-1; while(toupper(*lp)=toupper(*rp) & (lprp) ) /*found*/ lp+; rp _2_ ; /*found*/ if(lprp) _3_ ; else ret

14、urn 1;main() char s81; printf(Enter a string: ); scanf(%s,s); if(fun(s) printf(n%s is a Palindrome.nn,s); else printf(n%s isnt a Palindrome.nn,s);2、程序修改题#include /*found*/fun (int n ) int a = 2, b = 1, c, k ; double s=0.0 ; for ( k = 1; k = n; k+ ) s = s + 1.0 * a / b ;/*found*/ c = a; a += b; b +=

15、c; return(s) ;main( ) int n = 5 ; printf( nThe value of function is: %lfn, fun ( n ) ) ;3、程序设计题#include void fun(int m, int k, int xx) /* 以下代码仅供参考 */ int i, j=1, t=m+1; while(j=k) /* 以下完成判断素数，并存放到数组xx中 */ main() printf( nPlease enter two integers:) ; scanf(%d%d, &m, &n ) ; fun( m, n, zz) ; for( m =

16、0 ; m n ; m+ ) printf(%d , zzm) ; printf(n) ;第6套 1、程序填空题#include #include double fun(double x) double f, t; int n; f = 1.0 + x;/*found*/ t = _1_; n = 1; do n+;/*found*/ t *= (-1.0)*x/_2_; f += t; /*found*/ while (_3_ = 1e-6); return f;main() double x, y; x=2.5; y = fun(x); printf(nThe result is :n);

17、 printf(x=%-12.6f y=%-12.6fn, x, y);2、程序修改题#include long fun(int x,int y,long *p ) int i; long t=1;/*found*/ for(i=1; iy; i+) t=t*x; *p=t;/*found*/ t=t/1000; return t;main() long t,r; int x,y; printf(nInput x and y: ); scanf(%ld%ld,&x,&y); t=fun(x,y,&r); printf(nnx=%d, y=%d, r=%ld, last=%ldnn,x, y,r

18、,t );3、程序设计题#include #include double fun(double x)main() double x,s; printf(Input x: ); scanf(%lf,&x); s=fun(x); printf(s=%fn,s);第7套1、程序填空题 #include int c1,c2,c3;void fun(long n) c1 = c2 = c3 = 0; while (n) /*found*/ switch(_1_) /*found*/ case 1: c1+;_2_;/*found*/ case 2: c2+;_3_; case 3: c3+; n /=

19、10; main() long n=123114350L; fun(n); printf(nThe result :n); printf(n=%ld c1=%d c2=%d c3=%dn,n,c1,c2,c3);2、程序修改题#include int fun(unsigned n, int *zero) int count=0,max=0,t; do t=n%10;/*found*/ if(t=0) count+; if(maxt) max=t; n=n/10; while(n);/*found*/ zero=count; return max;main() unsigned n; int z

20、ero,max; printf(nInput n(unsigned): ); scanf(%d,&n); max = fun( n,&zero ); printf(nThe result: max=%d zero=%dn,max,zero);3、程序设计题 #include double fun(int n)main() int n; double s; printf(nInput n: ); scanf(%d,&n); s=fun(n); printf(nns=%fnn,s);第8套 1、程序填空题 #include unsigned long fun(unsigned long n) un

21、signed long x=0; int t; while(n) t=n%10;/*found*/ if(t%2=_1_)/*found*/ x=_2_+t;/*found*/ n=_3_; return x;main() unsigned long n=-1; while(n99999999|n0) printf(Please input(0n100000000): ); scanf(%ld,&n); printf(nThe result is: %ldn,fun(n);2、程序修改题 #include void fun (long s, long *t) int d; long sl=1;

22、/*found*/ t = 0; while ( s 0) d = s%10;/*found*/ if (d%2 = 0) *t = d * sl + *t; sl *= 10; s /= 10; main() long s, t; printf(nPlease enter s:); scanf(%ld, &s); fun(s, &t); printf(The result is: %ldn, t);3、程序设计题 #include void fun(char p1, char p2)main() printf(Enter s1 and s2:n) ; scanf(%s%s, s1, s2) ; printf(s1=%sn, s1) ; printf(s2=%sn, s2) ; printf(Invoke fun(s1,s2):n) ; fun(s1, s2) ; printf(After invoking:n) ; printf(%sn, s1) ;第9套 1、程序填空题 #include #define M 3#define N 4void fun(int (*a)N) int i=0,j,find=0,rmax,c,k; while( (iM) & (!find) rmax=ai0; c=0; for(j=1; jN; j+) if(rmax