Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:65:5: error: ‘vector’ was not declared in this scope vector<pair<int, int>> q; ^ user.cpp:65:25: error: expected primary-expression before ‘>’ token vector<pair<int, int>> q; ^ user.cpp:65:28: error: ‘q’ was not declared in this scope vector<pair<int, int>> q; ^ user.cpp:71:21: error: unable to deduce ‘auto&&’ from ‘q’ for (auto itr : q) { ^ user.cpp:56:12: warning: unused variable ‘a’ [-Wunused-variable] int i, a, b; ^ user.cpp:56:15: warning: unused variable ‘b’ [-Wunused-variable] int i, a, b; ^