Alice.cpp:1:1: error: 'vector' does not name a type
1 | vector<pair<int, int>> Alice()
| ^~~~~~
Bob.cpp:1:15: error: 'vector' was not declared in this scope
1 | long long Bob(vector<pair<int, int>> V)
| ^~~~~~
Bob.cpp:1:22: error: 'pair' was not declared in this scope
1 | long long Bob(vector<pair<int, int>> V)
| ^~~~
Bob.cpp:1:27: error: expected primary-expression before 'int'
1 | long long Bob(vector<pair<int, int>> V)
| ^~~
Bob.cpp:1:32: error: expected primary-expression before 'int'
1 | long long Bob(vector<pair<int, int>> V)
| ^~~
Bob.cpp:1:39: error: expression list treated as compound expression in initializer [-fpermissive]
1 | long long Bob(vector<pair<int, int>> V)
| ^