Compilare: user.cpp: In function ‘void addEdge(int, int, int)’: user.cpp:30:26: warning: narrowing conversion of ‘g[t].std::vector<_Tp, _Alloc>::size<Edge, std::allocator<Edge> >()’ from ‘std::vector<Edge>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] Edge a = {t, g[t].size(), 0, cap}; ^ user.cpp:31:26: warning: narrowing conversion of ‘g[s].std::vector<_Tp, _Alloc>::size<Edge, std::allocator<Edge> >()’ from ‘std::vector<Edge>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] Edge b = {s, g[s].size(), 0, cap}; ^ user.cpp: In function ‘bool dinicbfs()’: user.cpp:42:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < g[from].size(); j++) { ^ user.cpp: In function ‘int dinicdfs(int, int)’: user.cpp:58:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int &i = rem[from]; i < g[from].size(); i++) { ^