Keep Only the Highest Set Bit

Code

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

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


}

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

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

Solving Approach