Compilare: user.cpp: In function ‘void rez()’: user.cpp:21:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[start].size();++i) ^ user.cpp:24:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[start].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:51:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<fin.size();++i) ^