Compilare: main.cpp: In function 'std::set<int> cautGrupa(int, std::set<int>, int&)': main.cpp:26:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<grupa>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for (int i = 0; i < grupe.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:83:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<grupa>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for (int i = 0; i < grupe.size(); i++) | ~~^~~~~~~~~~~~~~