Compilare: main.cpp: In function 'int cupleaza(int)': main.cpp:12:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:21:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:10:11: warning: unused variable 'it' [-Wunused-variable] int i,it; ^~ main.cpp: In function 'void dfs(int)': main.cpp:58:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[node].size();i++) ~^~~~~~~~~~~~~~~