大佬，可以解释一下“乘5ll”是什么意思吗？
by George_qwe @ 2024-01-29 10:21:45
```
(long long)n*5
```
by ALLcry @ 2024-03-10 15:15:37
@[George_qwe](/user/1068756) 乘上5ll的意思是：
```cpp
n*5ll
```
等同于
```cpp
n*(long long)(5)
```
by NumberTrart @ 2024-03-20 17:33:15
@[NumberTrart](/user/602932) 谢谢 orz
by George_qwe @ 2024-03-21 19:13:51