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
    if (reg == 0) {
        return 0;
    }
    uint16_t bitPos = 0;
     for(int i = 0; i < 16; i++) {
        if ((reg & 1) == 1) {
            bitPos = i;
        }
        reg >>= 1;
     }
    //printf("%d\n", bitPos);
    return (1 << (bitPos));
}

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

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

Solving Approach