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
    if (reg==0){
        return 0;
    }
    else{
    uint16_t bitHigh = 0;
    for(uint16_t i=1;i<=15;i++){
        uint16_t temp = 1U & (reg >> i);
        if (temp){
            bitHigh = i; 
        }
    }
    uint16_t val = (1U) << bitHigh;
    return val;
    }
}

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

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

Solving Approach