Keep Only the Highest Set Bit

Code

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


uint16_t highest_set_bit(uint16_t reg)
 {
    int pos=0;
    for (int i=15;i>=0;i--)
    {
        if(reg & (1<<i))
        return 1<<i;
    }
    return 0;
}

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

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

Solving Approach