7-6

#include<stdio.h>
int main(void)
{
    int a[10] = {1,2,3,4,5,6,7,8,9,10};
    int low,high,mid,n = 10,x;


    printf("Enter x:");
    scanf("%d",&x);

    low= 0;high = n - 1;
    while (low <= high)  {
        mid = (low + high)/2;
        if (x == a[mid])
            break;
        else if (x < a[mid])
            high = mid - 1;
        else
            low = mid + 1;
    }
    if(low <= high)
        printf("Index is %d \n",mid);
    else
        printf("Not Found\n");
    
    
    return 0;
}