Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:32:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<L[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, int)': main.cpp:47:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<L[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:54:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<g[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:60:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1;i<intv.size();i++){ ~^~~~~~~~~~~~