View Code of Problem 3700

#include <iostream>
#include <cstdio>
#include <cmath>
using namespace std;
int main(){
    int a,c[999],k;
    while(cin>>a&&a!=0){
        k=0;
        while(a){
            c[k++]=a%2;
            if(a%2==1)
                break;
            a=a/2;
        }
        cout<<pow(2,k-1)<<endl;
    }
    return 0;
}