时间:2011-12-25 00:36:41
第36套题
一、程序填空题
#include <stdio.h>
int fun(char *s)
{ int n=0, flag=0;
while(*s!=' ')
{ if(*s!=' ' && flag==0) {
/**********found**********/
__1__ ; flag=1;}
/**********found**********/
if (*s==' ') flag= __2__ ;
/**********found**********/
__3__ ;
}
return n;
}
main()
{ char str[81]; int n;
printf("nEnter a line text:n"); gets(str);
n=fun(str);
printf("nThere are %d words in this text.nn",n);
}
二、程序改错题
#include <stdio.h>
#define N 20
int fun ( float *s, int n, float *aver )
{ float ave, t = 0.0 ;
int count = 0, k, i ;
for ( k = 0 ; k < n ; k++ )
/**************found**************/
t = s[k] ;
ave = t / n ;
for ( i = 0 ; i < n ; i++ )
if ( s[ i ] < ave ) count++ ;
/**************found**************/
*aver = Ave ;
return count ;
}
main()
{ float s[30], aver ;
int m, i ;
printf ( "nPlease enter m: " ) ; scanf ("%d", &m ) ;
printf ( "nPlease enter %d mark :n ", m ) ;
for( i = 0 ; i < m ; i++ ) scanf ( "%f", s + i ) ;
printf( "nThe number of students : %d n" , fun ( s, m, &aver ) );
printf( "Ave = %fn", aver ) ;
}
三、程序编写题
#include <stdio.h>
void fun(int *s, int t, int *k)
{
}
main( )
{
int a[10]={876,675,896,101,301,401,980,431,451,777}, k ;void NONO ();
fun(a, 10, &k) ;
printf("%d, %dn", k, a[k]) ;
NONO( ) ;
}
void NONO ()
{/* 本函数用于打开文件，输入测试数据，调用fun函数，输出数据，关闭文件。*/
int a[10], i, k, j ;
FILE *rf, *wf ;
rf = fopen("K:\k01\24010001\in.dat","r") ;
wf = fopen("K:\k01\24010001\out.dat","w") ;
for(i = 0 ; i < 10 ; i++) {
for(j = 0 ; j < 10 ; j++) fscanf(rf, "%d", &a[j]) ;
fun(a, 10, &k) ;
fprintf(wf, "%d,%dn", k, a[k]) ;
}
fclose(rf) ;
fclose(wf) ;
}