Keep Only the Highest Set Bit

Code

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    uint16_t highestBit =0; 
    for (uint16_t i=0; i < 16; i++){
        // printf("%hu \n", (0x01<<i));
        if ( 0 < (reg&(0x01<<i))){
            highestBit = reg&(0x01<<i); 
            // printf("%hu \n", (reg&(0x01<<i)));
        }
        
    }
    return highestBit;
}

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

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

Solving Approach