used开小了，应该开到20050
by swiftc @ 2019-07-11 11:47:13
$south\ park$好评
by 绝顶我为峰 @ 2019-07-11 11:54:10
@[liukairui](/space/show?uid=66014)
by swiftc @ 2019-07-11 11:54:55
...明白了，改成这样就过了
```cpp
if(data[i]+data[j]<=10001&&used[data[i]+data[j]]==true){ans++;used[data[i]+data[j]]=false;}
```
by liukairui @ 2019-07-11 14:31:44
@[UIKIt](/space/show?uid=183154)
by liukairui @ 2019-07-11 14:32:29