Eroare de compilare: user.cpp: In function ‘void Cauta(int)’: user.cpp:13:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < a[k].size(); ++i) ^ user.cpp: In function ‘void Citire()’: user.cpp:27:18: error: ‘class std::vector<int>’ has no member named ‘push’ a[x].push.back(y); ^ user.cpp: In function ‘int main()’: user.cpp:48:9: error: ‘i’ was not declared in this scope for(i = 1; i <= m; ++i) ^