@[Catcats](/user/658875)
输入可能包含空格。
by metaphysis @ 2022-05-21 19:50:15
```
#include<bits/stdc++.h>
using namespace std;
int main(){
string s,r="\\r",n="\\n";
//cin>>s;
getline(cin, s);
if(s.find(r+n)!=-1)cout<<"windows";
else if(s.find(n)!=-1)cout<<"linux";
else cout<<"mac";
}
```
by metaphysis @ 2022-05-21 19:51:05
@[metaphysis](/user/333388) thx
by Catcats @ 2022-05-21 20:58:31