Keep Only the Highest Set Bit

#include <stdio.h>
#include <stdint.h>
#define max(a,b) ((a) > (b) ? a : b)
// Complete the function
uint16_t highest_set_bit(uint16_t reg) {

    if(reg == 0)
    {
        return 0;
    }
    // Your logic here
    uint16_t highest_bit_pos = 0;
    uint16_t result = 0;
    for(int i = 0; i < 16; i++)
    {
        uint16_t bit = (reg >> i) & 1;
        if(bit == 1)
        {
            highest_bit_pos = i;

        }
    }
    //now we have the highest bit pos
    return (result |= (1U << highest_bit_pos));

    
}

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

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