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

    if(pos==-1){
    return 0;
    }
    else{
    reg = (1<<pos);
    return reg;
    }
    
}

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

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

Solving Approach