Question

I want to apply a while loop and have written that while (a!=-1); it should exit but it’s printing “0” always and I don’t know why. Can you explain?

#include <stdio.h>

int main()
{
    long num;   
    int a,i,j;
    int arr[10000];
    float x;
    while( a != -1)
    {
        scanf("%d",&a);
        int sum=0;

        for(i=0;i<a;i++)
        {
            scanf("%d",&arr[i]);
            sum = sum + arr[i];
        }
        x = sum%a;

        if (x == 0)
        {
            int z = sum/a;
            int y=0;
            for(j=0;j<a;j++)
            {
                if (arr[j]>z)
                {
                    y = (arr[j] - z) + y ;
                }
            }
            printf("%d",y);
        }
        else
            printf("-1");

    }

}

I think it is printing y; how to avoid so that it only exits?

Answer 1

I got my answer actually i have to take my scanf("%d",&a); outside while loop ;