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 h=0;
    if(reg==0)
     return 0;
    for(uint16_t i=15;i>=0;i--){
        if(reg&(1<<i)){
            h=(1<<i);
            break;
        }
    }
    return h;
}

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

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

Solving Approach