Compilare: main.cpp: In function 'int main()': main.cpp:44:53: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 44 | if (p[i].dr <= lg[j] && (tren[j].size() < c[j] || tren[j][tren[j].size()-c[j]] >= p[i].dr)) | ~~~~~~~~~~~~~~~^~~~~~