Compilare: main.cpp: In function 'void dfs(int)': main.cpp:13:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[nod].size(); ++i){ ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfsT(int)': main.cpp:22:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < GT[nod].size(); ++i){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < ctc[i].size(); ++j){ ~~^~~~~~~~~~~~~~~