时间:2011-12-24 23:55:41
第6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;
void fun( SLIST *p)
{ SLIST *t, *s;
t=p->next; s=p;
while(t->next != NULL)
{ s=t;
/**********found**********/
t=t->___1___;
}
/**********found**********/
printf(" %d ",___2___);
s->next=NULL;
/**********found**********/
free(___3___);
}
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("nThe list is NULL!n");
else
{ printf("nHead");
do { printf("->%d",p->data); p=p->next; } while(p!=NULL);
printf("->Endn");
}
}
main()
{ SLIST *head;
int a[N]={11,12,15,18,19,22,25,29};
head=creatlist(a);
printf("nOutput from head:n"); outlist(head);
printf("nOutput from tail: n");
while (head->next != NULL){
fun(head);
printf("nn");
printf("nOutput from head again :n"); outlist(head);
}
}
二、程序改错题
#include <stdio.h>
/************found************/
fun (char a)
{ if ( *a )
{ fun(a+1) ;
/************found************/
printf("%c" *a) ;
}
}
main( )
{ char s[10]="abcd";
printf("处理前字符串=%sn处理后字符串=", s);
fun(s); printf("n") ;
}
三、程序编写题
#include <stdio.h>
char *fun ( char *s, char *t)
{
}
main( )
{ char a[20],b[20];
void NONO ( );
printf("Input 1th string:") ;
gets( a);
printf("Input 2th string:") ;
gets( b);
printf("%sn",fun (a, b ));
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 *fp, *wf ;
int i ;
char a[20], b[20] ;
fp = fopen("K:\k01\24010001\in.dat","r") ;
wf = fopen("K:\k01\24010001\out.dat","w") ;
for(i = 0 ; i < 10 ; i++) {
fscanf(fp, "%s %s", a, b) ;
fprintf(wf, "%sn", fun(a, b)) ;
}
fclose(fp) ;
fclose(wf) ;