Compilare: user.cpp: In function ‘int bfs()’: user.cpp:59:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(iterator<Que.size()) ^ user.cpp:63:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<edges[tmp.b].size();i++) ^ user.cpp: In function ‘void FindMaxFlow()’: user.cpp:96:13: warning: unused variable ‘node’ [-Wunused-variable] int node; ^ user.cpp:91:9: warning: unused variable ‘flow’ [-Wunused-variable] int flow; ^