Compilare: main.cpp: In function 'void dfs(int)': main.cpp:18:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<L[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:57:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (ctc[i].size() > maxim){ ~~~~~~~~~~~~~~^~~~~~~ main.cpp:62:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<ctc[nr].size();i++) ~^~~~~~~~~~~~~~~