Bit Toggle

Code

#include <stdio.h>

int toggleFifthBit(int n) {
    // best solution is to use XOR
    // 0^1 = 1
    // 1^1 = 0
    // result is the flipped version
    return n ^ (1<<5);
}

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

Solving Approach