Compilare: user.cpp: In function ‘void getStartingNode(const int&, int&, int&, int&, std::vector<int>*)’: user.cpp:32:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < Graph[node].size(); ++i) { ^ user.cpp: In function ‘void getMaxHeightChain(const int&, std::vector<int>*)’: user.cpp:51:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < Graph[node].size(); ++i) { ^ user.cpp: In function ‘unsigned int solve()’: user.cpp:96:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < Graph[node].size(); ++i) { ^