第七章例7-3

#include<stdio.h>
int main(void)
{
int i,flag,x;
int a[5];

printf("Enter 5 inteages:");
for(i=0;i<5;i++)
scanf("%d",&a[i]);
printf("Enter x:");
scanf("%d",&x);

flag=0;
for(i=0;i<5;i++)
  if(a[i]==x){
   printf("Index is %d\n",i);
   flag=1;
   break;
  }
if(flag==0)
  printf("Not Found\n");