Compilare: user.cpp: In function ‘void visit(int)’: user.cpp:47:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i < G[node].size(); ++i) ~~^~~~~~~~~~~~~~~~ user.cpp: In function ‘void create_Strongly_Conn_Component(int, int)’: user.cpp:55:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i < Gt[node].size(); ++i) { ~~^~~~~~~~~~~~~~~~~ user.cpp: In function ‘void DFS(int)’: user.cpp:65:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < G[node].size(); i++) ~~^~~~~~~~~~~~~~~~ user.cpp: In function ‘void Write()’: user.cpp:73:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Sol[i].size() > maxim) ~~~~~~~~~~~~~~^~~~~~~ user.cpp:78:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < Sol[indx].size(); i++) ~~^~~~~~~~~~~~~~~~~~