题解

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,ans[10000],idx=0;
	cin>>n;
	if(n%2==1){
		cout<<-1;
		return 0;
	}
	while(n>0){
		ans[idx]=n%2;
		idx++;	
		n/=2;
	} 
	for(int i=idx-1;i>=0;i--){
		if(ans[i]==1) cout<<(int)pow(2,i)<<" ";
		
	}
    return 0;
}