Compilare: main.cpp: In function 'int main()': main.cpp:80:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int i = 0 ; i < rL [0].size () ; ++ i) | ~~^~~~~~~~~~~~~~~~ main.cpp:82:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for(int i = 0 ; i < rC [0].size () ; ++ i) | ~~^~~~~~~~~~~~~~~~