Compilare: main.cpp: In function 'int dfs(int)': main.cpp:16:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<G[nod].size(); i++) ~^~~~~~~~~~~~~~ main.cpp:25:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int dfs_t(int)': main.cpp:30:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<GT[nod].size(); i++) ~^~~~~~~~~~~~~~~ main.cpp:38:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void afisare()': main.cpp:44:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<CTC[i].size(); j++) ~^~~~~~~~~~~~~~