3. Check if K-th Bit is Set

#include <stdio.h>

int isKthBitSet(int n, int k) {
    if (!(n & (0b00000001 << k))){
        /* k-th bit is not set */
        return 0;
    }
    return 1;
}

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