Compilare: main.cpp: In function 'void df(int)': main.cpp:21:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'int distmax(int)': main.cpp:36:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:61:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<ctc[i].size();j++){ ~^~~~~~~~~~~~~~ main.cpp:62:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<ctc[i].size();k++){ ~^~~~~~~~~~~~~~ main.cpp:71:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<ctc[i].size();k++){ ~^~~~~~~~~~~~~~