现在还有人用
```cpp
ios::sync_with_stdio(false);
```
？
by Karamata @ 2020-04-09 15:34:12
```cpp
cout<<a[n].v<<"\n";
```
这是啥？ @[zhangjingcan](/user/219661)
by Purslane @ 2020-04-09 15:46:33
@[mazhixian](/user/120947) 好像打错了
by ⚡zhangjingcan⚡ @ 2020-04-09 15:48:10
@[mazhixian](/user/120947) 谢谢！
by ⚡zhangjingcan⚡ @ 2020-04-09 15:49:23