Check if K-th Bit is Set

Code

#include <stdio.h>

int isKthBitSet(int n, int k) {
    int mask = 1 << k;       // Shift 1 left by k positions
    if (n & mask) {
        return 1;            // Bit is set
    } else {
        return 0;            // Bit is not set
    }
}

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

Solving Approach