Keep Only the Highest Set Bit

Code

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    // Your logic here
    uint8_t bit_pos = 15;
    while (bit_pos > 0)
    {
        if ((reg & (1 << bit_pos)))
        {
            return (1 << bit_pos);
        }
        bit_pos--;
    }
    return 0;
    
}

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

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

Solving Approach