Compilare: main.cpp: In function 'void Insert(int)': main.cpp:13:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for (int i = 0; i < H[S].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'int Search(int)': main.cpp:23:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for (int i = 0; i < H[S].size(); i++) | ~~^~~~~~~~~~~~~