3. Check if K-th Bit is Set

#include <stdio.h>

int isBitSet(int n, int k) {
    return (n & (1 << k)) ? 1 : 0;
}

int main() {
    int N, K;
    scanf("%d %d", &N, &K);

    printf("%d", isBitSet(N, K));
    return 0;
}