Keep Only the Highest Set Bit

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    // Your logic here
    uint16_t ans = 0;
    for(int i=15; i>=0; i--){
        if( reg & (1<< i)){
            return (1<<i);
        }
    }

    return reg;
}

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

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

approach:

check if a bit set or not from left to right if yes then create anew value with the position as set 1.