Compilare: main.cpp: In function 'void DFS(int, int)': main.cpp:60:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < Ad[nod].size(); ++i ) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void Do()': main.cpp:93:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < Comp.size(); ++i ) ~~^~~~~~~~~~~~~ main.cpp:103:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < NC.size(); ++i ) ~~^~~~~~~~~~~