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
    uint8_t register_len = 16; //bit length
    uint16_t result = 0;
    for(int i = 0; i < register_len; i++)
    {
        if(reg & (1U << i))
        {
            result = (1U << i);
        }
    }
    return result;
}

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

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