Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); ++i) ~~^~~~~~~~~~~~~~~ main.cpp:50:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int x = 0; x < vld.size(); ++x) ~~^~~~~~~~~~~~ main.cpp:29:10: warning: variable 'leaf' set but not used [-Wunused-but-set-variable] bool leaf = 1; ^~~~