Compilare: user.cpp: In member function ‘void Graph::addEdge(int, int, int)’: user.cpp:34:36: warning: narrowing conversion of ‘(((Graph*)this)->Graph::adj + ((sizetype)(((long unsigned int)v) * 24ul)))->std::vector<_Tp, _Alloc>::size<Edge, std::allocator<Edge> >()’ from ‘std::vector<Edge>::size_type {aka long unsigned int}’ to ‘int’ inside { } [-Wnarrowing] Edge a{v, 0, C, adj[v].size()}; ^ user.cpp:35:36: warning: narrowing conversion of ‘(((Graph*)this)->Graph::adj + ((sizetype)(((long unsigned int)u) * 24ul)))->std::vector<_Tp, _Alloc>::size<Edge, std::allocator<Edge> >()’ from ‘std::vector<Edge>::size_type {aka long unsigned int}’ to ‘int’ inside { } [-Wnarrowing] Edge b{u, 0, 0, adj[u].size()}; ^ user.cpp: In member function ‘int Graph::sendFlow(int, int, int, int*)’: user.cpp:74:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( ; start[u] < adj[u].size(); start[u]++) ^