Keep Only the Highest Set Bit

Code

#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
static bool found =false;
// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    for (int16_t i=16; i>=0;i--)
    {
        if(found == false)
        {
            if(reg & (1<<i))
            {
             found = true;
            }
            else
            {

            }
        }
        else if ((found == true )&& (i >= 0))
        {
             reg &= ~(1<<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