Compilare: main.cpp: In function 'void Read()': main.cpp:19:11: warning: unused variable 'j' [-Wunused-variable] int i,j,x,y; ^ main.cpp: In function 'void DFS(int)': main.cpp:33:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i<A[nod].size(); ++i) ~^~~~~~~~~~~~~~ main.cpp: In function 'void DFS2(int)': main.cpp:47:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i<B[nod].size(); ++i) ~^~~~~~~~~~~~~~ main.cpp: In function 'void Do()': main.cpp:77:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i<Current.size(); ++i) ~^~~~~~~~~~~~~~~ main.cpp:84:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i<Sol.size(); ++i) ~^~~~~~~~~~~ main.cpp:60:11: warning: unused variable 'j' [-Wunused-variable] int i,j; ^ main.cpp:61:9: warning: unused variable 'maxim' [-Wunused-variable] int maxim = 0; ^~~~~ main.cpp:62:9: warning: unused variable 'ctmax' [-Wunused-variable] int ctmax = 1; ^~~~~