时间:2011-12-24 23:59:17
第9套题
一、程序填空题
#include <stdio.h>
#include <stdlib.h>
#define N 8
typedef struct list
{ int data;
struct list *next;
} SLIST;
SLIST *creatlist(int *a);
void outlist(SLIST *);
void fun( SLIST *h, int *n)
{ SLIST *p;
/**********found**********/
___1___=0;
p=h->next;
while(p)
{ (*n)++;
/**********found**********/
p=p->___2___;
}
}
main()
{ SLIST *head;
int a[N]={12,87,45,32,91,16,20,48}, num;
head=creatlist(a); outlist(head);
/**********found**********/
fun(___3___, &num);
printf("nnumber=%dn",num);
}
SLIST *creatlist(int a[])
{ SLIST *h,*p,*q; int i;
h=p=(SLIST *)malloc(sizeof(SLIST));
for(i=0; i<N; i++)
{ q=(SLIST *)malloc(sizeof(SLIST));
q->data=a[i]; p->next=q; p=q;
}
p->next=0;
return h;
}
void outlist(SLIST *h)
{ SLIST *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");
}
}
二、程序改错题
#include <stdio.h>
#include <string.h>
char * fun (char *s, char *t )
{
char *p , *r, *a;
/************found************/
a = Null;
while ( *s )
{ p = s; r = t;
while ( *r )
/************found************/
if ( r == p )
{ r++; p++; }
else break;
if ( *r == ' ' ) a = s;
s++;
}
return a ;
}
main()
{
char s[100], t[100], *p;
printf("nPlease enter string S :"); scanf("%s", s );
printf("nPlease enter substring t :"); scanf("%s", t );
p = fun( s, t );
if ( p ) printf("nThe result is : %sn", p);
else printf("nNot found !n" );
}
三、程序编写题
#include <stdio.h>
void fun(int a, int b, long *c)
{
}
main()
{ int a,b; long c;
void NONO ( );
printf("Input a b:");
scanf("%d%d", &a, &b);
fun(a, b, &c);
printf("The result is: %ldn", c);
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 *rf, *wf ;
int i, a,b ; long c ;
rf = fopen("K:\k01\24010001\in.dat", "r") ;
wf = fopen("K:\k01\24010001\out.dat","w") ;
for(i = 0 ; i < 10 ; i++) {
fscanf(rf, "%d,%d", &a, &b) ;
fun(a, b, &c) ;
fprintf(wf, "a=%d,b=%d,c=%ldn", a, b, c) ;
}
fclose(rf) ;
fclose(wf) ;
}