Compilare: main.cpp: In member function 'void Graph::AddEdge(int, int, int)': main.cpp:25:45: warning: narrowing conversion of '(&((Graph*)this)->Graph::G.std::vector<std::vector<muchie> >::operator[](((std::vector<std::vector<muchie> >::size_type)y)))->std::vector<muchie>::size()' from 'std::vector<muchie>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 25 | G[x].push_back({y, 0, cap, G[y].size()}); | ~~~~~~~~~^~ main.cpp:26:46: warning: narrowing conversion of '((&((Graph*)this)->Graph::G.std::vector<std::vector<muchie> >::operator[](((std::vector<std::vector<muchie> >::size_type)x)))->std::vector<muchie>::size() - 1)' from 'std::vector<muchie>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 26 | G[y].push_back({x, 0, 0, G[x].size() - 1}); | ~~~~~~~~~~~~^~~ main.cpp: In member function 'int Graph::sendFlow(int, int, int)': main.cpp:50:24: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for(; start[s] < G[s].size(); ++start[s]){