Compilare: main.cpp: In function 'int main()': main.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0; i < C.size() - 1; i++) { | ~~^~~~~~~~~~~~~~ main.cpp:77:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for(int i = 0; i < rasp.size(); i++) { | ~~^~~~~~~~~~~~~