Eroare de compilare: main.cpp:26:1: error: 'vector' does not name a type 26 | vector<int> a; | ^~~~~~ main.cpp: In function 'void checkIfPairCanMakeSum(int, int&, int&, int)': main.cpp:32:19: error: 'a' was not declared in this scope 32 | int sum = a[i] + a[j]; | ^ main.cpp: In function 'void solve()': main.cpp:51:5: error: 'a' was not declared in this scope 51 | a.resize(n + 1); | ^ main.cpp:56:5: error: 'sort' was not declared in this scope; did you mean 'short'? 56 | sort(a.begin() + 1, a.end()); | ^~~~ | short Non zero exit status: 1