Keep Only the Highest Set Bit

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    // Your logic here
    if(reg){
        uint16_t temp = reg;
        for(int i=15; i>=0; i--)
        {
            temp = reg &(1<<i);
            if(temp)
            {
                return temp;
            }
        }
    }
    else
        return reg;

}

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

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