Compilare: main.cpp: In member function 'bool HopcorftKarp::bfs()': main.cpp:45:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i = 0; i < adj[node].size(); i ++) { | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:182:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 182 | for(int l = 0; l < lc.size(); l ++) { | ~~^~~~~~~~~~~ main.cpp:183:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 183 | for(int r = 0; r < rc.size(); r ++) { | ~~^~~~~~~~~~~ main.cpp:189:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 189 | if(graph.runAlgorithm() == rc.size()) | ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~