Compilare: user.cpp: In member function ‘void MaxFlow::addEdge(int, int, int)’: user.cpp:69:28: warning: narrowing conversion of ‘((MaxFlow*)this)->MaxFlow::g[t].std::vector<_Tp, _Alloc>::size<MaxFlow::Edge, std::allocator<MaxFlow::Edge> >()’ from ‘std::vector<MaxFlow::Edge>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] Edge a = { t, g[t].size(), 0, cap }; ^ user.cpp:70:28: warning: narrowing conversion of ‘((MaxFlow*)this)->MaxFlow::g[s].std::vector<_Tp, _Alloc>::size<MaxFlow::Edge, std::allocator<MaxFlow::Edge> >()’ from ‘std::vector<MaxFlow::Edge>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] Edge b = { s, g[s].size(), 0, cap }; ^