Keep Only the Highest Set Bit

Code

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    int i=0;
    uint16_t temp=reg;
    while(reg!=0)
    {
    i++;
    reg=reg>>1;
    }
    i-=1;
    return 1U<<i;// Your logic here
}

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

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

Solving Approach