Keep Only the Highest Set Bit

Code

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    // Your logic here
    uint16_t cnt=0;
    uint16_t tmp=reg;
    while (tmp!=0){
        
        cnt++;
        tmp>>=1;
    }

    if (cnt>0){
        return reg&(1<<(cnt-1));
    }


    return 0;
}

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

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

Solving Approach