Toggle Bit

Problem Statement

Input Format

Two space-separated integers N and K.

Output Format

Print the updated integer value after toggling the K-th bit.

Constraints

0 <= N <= 1000000, 0 <= K <= 31

Sample Input

5 1

Sample Output

7

Explanation

Binary of 5 is 101. Toggling the 1st bit gives 111, which is 7 in decimal.

Starter Code

#include <stdio.h>

int main() {
    int n, k;
    if (scanf("%d %d", &n, &k) == 2) {
        // Write your code here
    }
    return 0;
}

Limits

• Time Limit: 1s
• Memory Limit: 256MB