3. Check if K-th Bit is Set

#include <stdio.h>

int isKthBitSet(int n, int k)
{
    int one;
    int mask = (1 << k);
    int resu = mask & n;
    if (resu)
    {
        one++;
    }
    return one;
}

int main()
{
    int n, k;
    scanf("%d %d", &n, &k);
    printf("%d", isKthBitSet(n, k));
    return 0;
}