Keep Only the Highest Set Bit

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    uint16_t temp_reg;
    for(int i = 16; i > 0; i--)
    {
        temp_reg = reg >> i;
        if(temp_reg == 1)
        {
            return reg & (1<<i);
        }
    }

        return 0;
    
}

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

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