Compilare: main.cpp: In function 'int bfs()': main.cpp:29:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int i = 0; i < graf[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int flowmax()': main.cpp:48:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for ( int i = 0 ; i < graf[N].size() ; i++ ) | ~~^~~~~~~~~~~~~~~~