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 i;
    for(i=15;i>=0;i--)
    {
        int b=reg&(1<<i);
        if(b!=0)
        {
            break;
        } 
    }  
    int b1=1<<i;
    reg=reg&0;
    reg = reg|(b1);
    return reg;
    // Your logic here
}

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

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

Solving Approach