Compilare: main.cpp: In function 'int bfs()': main.cpp:46:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(int i = 0; i < l[u].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'int edmonds_karp()': main.cpp:77:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for(int i = 0; i < l[2*n+1].size(); i++) | ~~^~~~~~~~~~~~~~~~~