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)
    {
    int i=0,pos=0,n=1;
    for(i;i<16;i++)
    {
        if(reg>>i&1)
        pos=i;
    }
    for(i=0;i<=pos;i++,n=n*2)
    {
        if(i==pos)
        return n;

    }
    }
    else
    return 0;
}

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

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

Solving Approach