Compilare: main.cpp: In member function 'long long int Dinic::dfs(int, long long int)': main.cpp:69:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for (int &i = done[u]; i < g[u].size(); i++) { | ~~^~~~~~~~~~~~~