Eroare de compilare: main.cpp: In function 'int longest(const std::vector<int>&)': main.cpp:8:10: error: assignment of read-only location '(& a)->std::vector<int>::operator[](0)' 8 | a[0] = -1; // Inițializăm suma 0 la poziția -1 (pentru a acoperi cazul când prima sumă este divizibilă cu 3) main.cpp:10:27: error: invalid use of member function 'constexpr std::vector<_Tp, _Alloc>::size_type std::vector<_Tp, _Alloc>::size() const [with _Tp = int; _Alloc = std::allocator<int>; size_type = long unsigned int]' (did you forget the '()' ?) 10 | for (int i = 0; i < a.size; i++) { | ~~^~~~ | () main.cpp:21:18: error: assignment of read-only location '(& a)->std::vector<int>::operator[](((std::vector<int>::size_type)r))' 21 | a[r] = i; // Salvăm prima apariție a acestei rămășițe main.cpp: In function 'int main()': main.cpp:33:17: error: conflicting declaration 'std::vector<int> a1' 33 | vector<int> a1(N1); | ^~ main.cpp:29:20: note: previous declaration as 'int a1 [500000]' 29 | int N1, N2, N3,a1[500000]; | ^~ main.cpp:53:21: error: invalid initialization of reference of type 'const std::vector<int>&' from expression of type 'int [500000]' 53 | cout << longest(a1) << endl; | ^~ main.cpp:3:32: note: in passing argument 1 of 'int longest(const std::vector<int>&)' 3 | int longest(const vector<int>& a) { | ~~~~~~~~~~~~~~~~~~~^ Non zero exit status: 1