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 set_i = 0;
    for(uint16_t i = 0; i<16; i++){
        if(1 & (reg >> i)){
            set_i = i;
        }
    }
    reg &= (1 << set_i);
    return reg;
    
}


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

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

Solving Approach