#include <stdio.h>
int main()
{
    int A[20], n, i;
    int valid = 2; // 2 for unused value
    int one = 0, zero = 0;
    printf("Enter number of inputs :");
    scanf("%d", &n);
    if (n >= 2)
    {
        printf("Enter %d inputs (0 or 1) :\n", n);
        for (int j = 1; j <= n; j++)
        {
            scanf("%d", &A[j]);
        }
        for (i = 1; i <= n; i++)
        {
            switch (A[i])
            {
            case 1:
            {
                one++;
                break;
            }
            case 0:
            {
                zero++;
                break;
            }
            }
        }
        if (one == zero)
        {
            valid = 1;
        }
        else
        {
            valid = 0;
        }
    }
    else
    {
        printf("Your inputs should be atleast 2.\n");
    }
    switch (valid)
    {
    case 1:
    {
        printf("Congrats, Your string is valid \n");
        break;
    }
    case 0:
    {
        printf("Your string is not valid\n");
        break;
    }
    }
    return 0;
}