Compilare: main.cpp: In function 'int bfs()': main.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::unordered_map<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for (int i = 0; i < capacity.size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int maxflow()': main.cpp:57:20: warning: unused variable 'neigh' [-Wunused-variable] 57 | for (auto &neigh : adj[target]) | ^~~~~