Compilare: main.cpp: In function 'int main()': main.cpp:33:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | while (posStart < start.size() && start[posStart].first == x) { | ~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:46:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | while (posStop < stop.size() && stop[posStop].first == x) { | ~~~~~~~~^~~~~~~~~~~~~