Compilare: main.cpp: In function 'int bfs()': main.cpp:35:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for (int i = 0; i < l[u].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'int edmonds_karp()': main.cpp:54:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for (int i = 0; i < l[2 * n + 1].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~