Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:41:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<V[node].size();i++) ^ user.cpp: In function ‘int RMQ(int, int)’: user.cpp:99:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp: In function ‘void DFS4(int, int)’: user.cpp:166:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<Aux[node].size();j++) ^ user.cpp:170:17: warning: unused variable ‘n2’ [-Wunused-variable] int n2=Stack[Poz[n]+1]; ^ user.cpp:174:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[node].size();i++) ^ user.cpp: In function ‘void DFS3(int, int)’: user.cpp:233:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[node].size();i++) ^ user.cpp:242:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<X[node].size();i++) ^ user.cpp:244:13: warning: unused variable ‘neighb’ [-Wunused-variable] int neighb=X[node][i]; ^ user.cpp:248:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<F[node].size();i++) ^ user.cpp:250:13: warning: unused variable ‘neighb’ [-Wunused-variable] int neighb=F[node][i].first; ^ user.cpp:257:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<X2[node].size();i++) ^ user.cpp:262:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<F2[node].size();i++) ^