Check if K-th Bit is Set

Code

#include <stdio.h>
/*
reg |= (1 << n);     // Set bit n
reg &= ~(1 << n);    // Clear bit n
reg ^= (1 << n);     // Toggle bit n
if (reg & (1 << n))  // Check if bit n is set
*/
 
int isKthBitSet(int n, int k) {
    return (n >> k) & 1;
}

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

Solving Approach