全国计算机二级考试C语言模拟试题(一)

1套每一套题目都是按照“填空题--改错题---编程题”顺序排列,填空题上面带有两个划线的是人工做题时候多余划线，不要理睬！！printf("\nThe average is: %f\n",fun(x));printf("\nThe result :\n",fun(x));for(i=0; i<N; i++) printf("%5.0f ",x[i]);printf("\n");}改错题#include <stdio.h>void fun ( char *s, int num[5] ){ int k, i=5;for ( k = 0; k<i; k++ )/**********found**********/num[k]=0;for (; *s; s++){ i = -1;/**********found**********/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]++;}}main( ){ char s1[81]; int num1[5], i;printf( "\nPlease enter a string: " ); gets( s1 );fun ( s1, num1 );for ( i=0; i < 5; i++ ) printf ("%d ",num1[i]); printf ("\n"); }编程题#include <stdio.h>#define M 4#define N 5int fun ( int a[M][N] ){int tot=0,i,j;for(i=0;i<N;i++){tot+=a[0][i];tot+=a[M-1][i];}for(i=1;i<M-1;i++){tot+=a[i][0];tot+=a[i][N-1];}return tot;}main( ){ int aa[M][N]={{1,3,5,7,9},{2,9,9,9,4},{6,9,9,9,8},{1,3,5,7,0}};int i, j, y;void NONO ();printf ( "The original data is : \n" );for ( i=0; i<M; i++ ){ for ( j =0; j<N; j++ ) printf( "%6d", aa[i][j] ); printf ("\n");}y = fun ( aa );printf( "\nThe sum: %d\n" , y );printf("\n");NONO( );}void NONO (){/* 请在此函数内打开文件，输入测试数据，调用 fun 函数，输出数据，关闭文件。

*/int i, j, y, k, aa[M][N] ;FILE *rf, *wf ;rf = fopen("K:\\k49\\24900830\\in.dat","r") ;wf = fopen("K:\\k49\\24900830\\out.dat","w") ;for(k = 0 ; k < 10 ; k++) {for(i = 0 ; i < M ; i++)for(j = 0 ; j < N ; j++) fscanf(rf, "%d", &aa[i][j]) ;y = fun ( aa );fprintf(wf, "%d\n", y) ;}fclose(rf) ;fclose(wf) ;2、printf("\nThe original array:\n");for(i=0; i<N; i++){ for(j=0; j<N; j++) printf("%d ",t[i][j]);printf("\n");}fun(t,N);printf("\nThe result is:\n");for(i=0; i<N; i++){ for(j=0; j<N; j++) printf("%d ",t[i][j]); printf("\n");}}改错题#include <stdio.h>#define N 10/************found************/int fun(int a[], int m ){ int low=0,high=N-1,mid;while(low<=high){ mid=(low+high)/2;if(m<a[mid])high=mid-1;/************found************/else if(m > a[mid])low=mid+1;else return(mid);}return(-1);}main(){ int i,a[N]={-3,4,7,9,13,45,67,89,100,180 },k,m;printf("a数组中的数据如下:");for(i=0;i<N;i++) printf("%d ", a[i]);printf("Enter m: "); scanf("%d",&m);k=fun(a,m);if(k>=0) printf("m=%d,index=%d\n",m,k);else printf("Not be found!\n");}编程题#include <stdio.h>void fun( char *a, char *p ){char *q=a;int j=0;while(*q&&q<p){if(*q!='*')a[j++]=*q;q++;}while(*p)a[j++] = *p++;a[j]=0;}main(){ char s[81],*t;void NONO ( );printf("Enter a string:\n");gets(s);t=s;while(*t)t++;t--;while(*t=='*')t--;fun( s , t );printf("The string after deleted:\n");puts(s);NONO();}void NONO(){/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。

*/ FILE *in, *out ;int i ; char s[81],*t ;in = fopen("K:\\k49\\24900830\\in.dat","r") ;out = fopen("K:\\k49\\24900830\\out.dat","w") ;for(i = 0 ; i < 10 ; i++) {fscanf(in, "%s", s) ;t=s;while(*t)t++;t--;while(*t=='*')t--;fun(s,t) ;fprintf(out, "%s\n", s) ;}fclose(in) ;fclose(out) ;}改错题#include <stdio.h>#include <stdlib.h>typedef struct aa{ int data; struct aa *next; }NODE; int fun(NODE *h){ int sum = 0 ;NODE *p;/***********found**********/p=h->next;while(p){ if(p->data%2==0)sum +=p->data;/***********found**********/p=p->next;}return sum;}NODE *creatlink(int n){ NODE *h, *p, *s;int i;h=p=(NODE *)malloc(sizeof(NODE));for(i=1; i<=n; i++){ s=(NODE *)malloc(sizeof(NODE));s->data=rand()%16;s->next=p->next;p->next=s;p=p->next;}p->next=NULL;return h;}outlink(NODE *h, FILE *pf){ NODE *p;p = h->next;fprintf(pf ,"\n\nTHE LIST :\n\n HEAD " );while(p){ fprintf(pf ,"->%d ",p->data ); p=p->next; }fprintf (pf,"\n");}outresult(int s, FILE *pf){ fprintf(pf,"\nThe sum of even numbers : %d\n",s);} main(){ NODE *head; int even;head=creatlink(12);head->data=9000;outlink(head , stdout);even=fun(head);printf("\nThe result :\n"); outresult(even, stdout); }编程题#include <stdio.h>#include <string.h>#define N 80int fun(char *str){int i,j = strlen(str);for(i=0;i<j/2;i++)if(str[i]!=str[j-i-1])return 0;return 1;}main(){ char s[N] ;void NONO ();printf("Enter a string: ") ; gets(s) ;printf("\n\n") ; puts(s) ;if(fun(s)) printf(" YES\n") ;else printf(" NO\n") ;NONO() ;}void NONO (){/* 请在此函数内打开文件，输入测试数据，调用 fun 函数，输出数据，关闭文件。