Keep Only the Highest Set Bit

Code

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    uint16_t ret = 0 ;
    if ( reg != 0 ) 
        {
        for ( int i = 0; i < 16; i++)
        {
            if ( reg >> i == 1) 
            {
                ret =  ( 1 << i );
            }
        }
    }
    return ret;
}

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

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

Solving Approach