Problem	subgraphs
User	Xiaoyang
Submission Time	2023-02-03 20:44:31
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

cc1plus: error: ‘::main’ must return ‘int’
subgraphs.cpp: In function ‘int main()’:
subgraphs.cpp:19:5: error: ‘ll’ was not declared in this scope
19 | ll n,e;cin>>n>>e;
| ^~
subgraphs.cpp:19:17: error: ‘n’ was not declared in this scope; did you mean ‘yn’?
19 | ll n,e;cin>>n>>e;
| ^
| yn
subgraphs.cpp:19:20: error: ‘e’ was not declared in this scope
19 | ll n,e;cin>>n>>e;
| ^