你干嘛
by 关志勇 @ 2017-04-12 13:09:44
加个读入优化试试：
```cpp
inline int read() {
int x = 0, f = 1;
char ch = getchar();
while (ch < '0' || ch > '9') {
if (ch == '-') f = -1;
ch = getchar();
}
while (ch >= '0' && ch <= '9') {
x = x * 10 + ch - '0';
ch = getchar();
}
return x * f;
}
```
by Alextokc @ 2017-05-07 11:43:40