题解

#include<bits/stdc++.h>
using namespace std;
int a[1100];
int main(){
    int n, x = 0, y = 0;
    bool flag = false;
    cin >> n;
    if(n % 2 == 1){
        cout << -1 << endl;
        return 0;
    }
    else{
        while(n != 0){
            n /= 2; 
            x++;
            if(n % 2 == 1){
                a[y] = pow(2, x);
            }
            y++;
        }
    }
    for(int i = y - 1; i >= 0; i--){
        if(a[i] != 0){
            cout << a[i] << " ";
        }
    }

    return 0;
}