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
    uint16_t locateBit;
    for(uint16_t bitPos = (uint16_t)15;bitPos >= (uint16_t)0;bitPos--)
    {
        locateBit = (uint16_t)1 << bitPos;
        if(locateBit == (reg & locateBit))
        {
            reg = locateBit;
            break;
        }
    }
    return reg;
}

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

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

Solving Approach