Keep Only the Highest Set Bit

Code

#include <stdio.h>
#include <stdint.h>

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    uint16_t res = 0;
    for(uint16_t n = 0 ; n < 16 ; n++)
    {
        uint16_t tmp = 1<<(15-n);
        if((tmp & reg) > 0)
            return tmp;   
    }
    return 0;
}

int main() {
    uint16_t reg;
    scanf("%hu", &reg);

    uint16_t result = highest_set_bit(reg);
    printf("%hu", result);
    return 0;
}

Solving Approach