Compilare: main.cpp: In function 'void DFSW(int, int)': main.cpp:28:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Ad[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void DFS(int, int)': main.cpp:52:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Ad[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void Read()': main.cpp:99:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < V[i].size(); ++j ) ~~^~~~~~~~~~~~~ main.cpp: In function 'void Update(int, int, int)': main.cpp:106:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( pos < V[path].size()) ~~~~^~~~~~~~~~~~~~~~