Problem	trains
User	fastantic
Submission Time	2023-07-21 02:35:51
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

trains.cpp:6:9: error: ‘vector’ does not name a type
6 | typedef vector<int> vi;
| ^~~~~~
trains.cpp:7:9: error: ‘vector’ does not name a type
7 | typedef vector<ll> vll;
| ^~~~~~
trains.cpp:9:9: error: ‘vector’ does not name a type
9 | typedef vector<pair<ll, ll> > vpll;
| ^~~~~~
trains.cpp:10:9: error: ‘vector’ does not name a type
10 | typedef vector<vector<ll> > vvll;
| ^~~~~~