Compilare: main.cpp: In function 'std::vector<int> litera()': main.cpp:63:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for (int i = 0; i < multimi[ind].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> intersectie(const std::vector<int>&, const std::vector<int>&)': main.cpp:108:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 108 | while (i < x.size() && j < y.size()) | ~~^~~~~~~~~~ main.cpp:108:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 108 | while (i < x.size() && j < y.size()) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:156:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 156 | for (int i = 0; i < rez.size(); i++) | ~~^~~~~~~~~~~~