例7-3

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

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

        return 0;
}