3. Check if K-th Bit is Set

#include <stdio.h>
#define testbit(n,k) n & (1<<k)

int isKthBitSet(int n, int k) {
    // Write your code here
    if (testbit(n,k)) {
        return 1;
    } else {
        return 0;
    }
}

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