Compilare: main.cpp: In function 'bool CheckDel(int, int)': main.cpp:100:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < Ad[A].size(); ++i ) ~~^~~~~~~~~~~~~~ main.cpp: In function 'void Dfs2(int, int, int)': main.cpp:112:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < Ad[nod].size(); ++i ) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void DfsD(int, int, int, int)': main.cpp:135:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < Ad[nod].size(); ++i ) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void Dist(int, int)': main.cpp:179:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < Sol.size(); ++i ) ~~^~~~~~~~~~~~