Bit Toggle

Code

#include <stdio.h>

int toggleFifthBit(int n) {
    int k = 1<<5;
    if(n&k){
        n &= ~k;
    }else{
        n |= k;
    }
    return n;
}

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

Solving Approach