Untitled

#include <stdio.h>
int main()
{
    int n, num, rem, i = 1;
    long long int sum = 0;
    scanf("%d", &n);
    int m[n];
    scanf("%d", &num);
    if (num == 0)
    {
        sum = 0;
    }
    else
    {
        while (num)
        {
            rem = num % 10;
            m[n - i] = rem;
            i++;
            num /= 10;
        }
        for (int k = 0; k < n; k++)
        {
            sum = sum + m[k];
        }
    }

    printf("%lld", sum);

    return 0;
}