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
    int i,x;
    if (reg==0) return 0;
    for(i=15;i>=0;i--){
        x=reg;
        reg&=(1<<i);
        if (reg==0){
         reg=x;
         continue;
        } 
        else return reg;
    }
}

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

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

Solving Approach