2. Bit Toggle

#include <stdio.h>

unsigned int toggleFifthBit(int n) 
{
    return ((1<<5)^n); 
    /*
    1<<5: This will generate binary: 0010 0000
    Example: n=10 Binary 0000 1010
    0000 1010
    0010 0000
    ^(XOR operation) is used for toggling bits.
    0010 1010 
    */
}

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

//0000 1010
//0010 0000 
//0010 1010