Compilare: main.cpp: In function 'void Dfs(int, int)': main.cpp:26:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<graph[node].size(); ++i) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void HeavyPath(int, int)': main.cpp:43:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<graph[node].size(); ++i) ~^~~~~~~~~~~~~~~~~~~