```cpp
#include<bits/stdc++.h>
using namespace std;
int x,n;
int main() {
scanf("%d",&n);
if(n%2==1){
printf("-1");
return 0;
}
for(int i=2;i<=100;i=i+2){
x=pow(2,26);
while(x>1){
if(n-x>=0){
n-=x;
printf("%d",x );
}
x=x/2;
}
}
}
```
**我的方法请您过目**
by Bill_Cipher_137 @ 2020-11-22 14:58:19
@[lcyxds](/user/124314) 我只是提个意见...那我的正解@[justinjia](/user/373226) 也可以看一下吧
```cpp
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n,i=0;
ll q[10009];
int main(){
cin>>n;
if(n%2==1){
cout<<-1;
return 0;
}
while(n){
q[++i]=n&-n;
n-=n&(-n);
}
for(int j=i;j>=1;j--){
cout<<q[j];
if(j!=1)cout<<' ';
}
return 0;
}
```
by lihaochen_harold @ 2020-11-23 22:19:11
~~@[faswasqas_fff](/user/368171) 不缩进。。。~~
by justinjia @ 2020-11-25 17:08:33
@[lihaochen_harold](/user/284855) `typedef long long ll;`啥意思？
~~（这验证码咋弄出来的，上来就wa。。。）~~
by justinjia @ 2020-11-25 17:37:53
@[justinjia](/user/373226) typedef long long ll;是指将long long 类重命名为ll;
在重新定义后，再写
```cpp
long long a;
```
时可以写为
```
ll a;
```
(方便偷懒，建议写缺省源里）
不过这个代码里没用到，可以忽略这一行
by lihaochen_harold @ 2020-11-25 21:30:05
@[lihaochen_harold](/user/284855) ```typedef long long ll;```是不是相当于```#define/*我很少用这个*/ ll long long```？
by justinjia @ 2020-11-26 16:44:38
@[justinjia](/user/373226) 啊对啊
by lihaochen_harold @ 2020-11-26 19:20:42
```c++
#include <iostream>
int main() {
int p;
std::cin >> p;
if(p % 2) {
printf("-1");return 0;
}
for(int i = 8388608; i > 1; i /= 2)
if(p >= i) {
p -= i;
printf("%d ", i);
}
}
```
by hyk2019 @ 2020-12-22 20:07:56
@[hyk2019](/user/276246) 简化版
```c++
#include<iostream>
int main(){int p;std::cin>>p;if(p%2)printf("-1");else for(int i=8388608;i>1;i/=2)if(p>=i){p-=i;printf("%d ",i);}}
```
by hyk2019 @ 2020-12-22 20:10:27