Compilare: user.cpp: In function ‘void preCompute(int, int)’: user.cpp:27:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (currentDistance > maxDistance) ^ user.cpp: In function ‘int dfs(int, int, int)’: user.cpp:56:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < Tree[node].size(); i++) ^ user.cpp:61:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < Tree[node].size(); i++) ^