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 n=reg;
    uint16_t i=0,j=0;
    while(n)
    {
        if(n&1)
        {
            i=j;
        }
            j++;
            n=n>>1;
    }
    if(i)
    {
        reg=0;
        reg=1<<i;
        return reg;
    }
    return 0;
}

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

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

Solving Approach