Compilare: main.cpp: In member function 'bool graf_orientat::Exista_lant_nesaturat(int, int, std::vector<int>&, std::vector<std::vector<int> >&, std::vector<std::vector<int> >&, std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:720:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 720 | for(int i=0; i<muchii[v].size(); ++i) | ~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'int graf_orientat::Max_flow(int, int)': main.cpp:757:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 757 | for(int j=0; j<muchii_costuri_adiacenta[i].size(); ++j) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:769:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 769 | for(int i=0; i<muchii[d].size(); ++i) | ~^~~~~~~~~~~~~~~~~