Compilare: user.cpp: In function ‘int findAssault(int, int)’: user.cpp:20:44: warning: variable ‘initial’ set but not used [-Wunused-but-set-variable] int val=(Attack[j].second | x),initial; ^ user.cpp: In function ‘void buildG()’: user.cpp:82:44: warning: variable ‘initial’ set but not used [-Wunused-but-set-variable] int val=(Attack[j].second | i),initial; ^ user.cpp: In function ‘void Dijkstra()’: user.cpp:157:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[node.second].size();i++) ^ user.cpp: In function ‘int findAssault(int, int)’: user.cpp:55:1: warning: control reaches end of non-void function [-Wreturn-type] } ^