Compilare: main.cpp: In function 'void dfs(int)': main.cpp:19:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:47:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ctc[i].size()>maxim){ ~~~~~~~~~~~~~^~~~~~ main.cpp:52:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<ctc[nr].size();i++) ~^~~~~~~~~~~~~~~