Compilare: main.cpp: In function 'void dfs(int)': main.cpp:49:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[nod].size(); ++i) dfs(v[nod][i]); ~^~~~~~~~~~~~~~ main.cpp:54:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<v[nod].size(); ++j) ~^~~~~~~~~~~~~~ main.cpp: In function 'int detRad()': main.cpp:36:1: warning: control reaches end of non-void function [-Wreturn-type] } ^