你读入 num 了吗
by henry_qwh @ 2024-03-05 19:12:19
@[Zzz123456789101112](/user/1292265) ~~求关注இ௰இ~~
```cpp
#include<bits/stdc++.h>
using namespace std;
int n , s = 0;
int main() {
cin >> n;
while( n )
{
s=s * 10 + n % 10;
n /= 10;
}
cout << s;
return 0;
}
```
by quxiangyu @ 2024-03-05 19:18:23
@[henry_qwh](/user/421657) 没有-_-,谢谢啦
by Zzz123456789101112 @ 2024-03-05 19:29:13