check函数没返回值？？？
by 瞬间。。 @ 2021-05-25 13:28:49
@[Priori_Incantatem](/user/120362)
```cpp
inline /*int*/ void check(int &x,int y)
{
x=mul(x,y);
}
```
by E1_de5truct0r @ 2021-05-25 14:03:14
@[瞬间。。](/user/238311) @[zhengjinchen](/user/195198) AC了，谢谢！！
by Priori_Incantatem @ 2021-05-25 14:14:35