Keep Only the Highest Set Bit

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    if(reg != 0)
    {
        for(uint16_t i = ((sizeof(reg)*8)-1);i>=1;i--)
        {
            if(((reg>>i)&(uint16_t)1) == 1)
            {
                return reg&=1<<i;
            }
        }
    }
    return reg;
    // Your logic here
}

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

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