Check if K-th Bit is Set

Code

#include <stdio.h>

#define IS_BIT_SET(n, k) (n & (1 << k))

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

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

Solving Approach