@[hang09](/user/547002) 还有一个剪枝，你可以再想想（
by 159号程序员 @ 2022-06-01 21:00:23
想不出来去看题解（
by 159号程序员 @ 2022-06-01 21:00:39
@[159号程序员](/user/334586) 提前break?
by hang09 @ 2022-06-08 17:02:41
```cpp
if(k%4!=0) {
cout<<"no\n";
}
```
by kimi0705 @ 2022-09-29 12:35:53