Compilare: user.cpp: In constructor ‘Graph::Graph(unsigned int, unsigned int)’: user.cpp:11:21: warning: ‘Graph::number_of_vertices_’ will be initialized after [-Wreorder] const unsigned int number_of_vertices_; ^ user.cpp:10:21: warning: ‘const unsigned int Graph::number_of_edges_’ [-Wreorder] const unsigned int number_of_edges_; ^ user.cpp:15:2: warning: when initialized here [-Wreorder] Graph(unsigned int number_of_vertices, unsigned int number_of_edges) ^ user.cpp: In member function ‘void Graph::calculateDistance(unsigned int, unsigned int*)’: user.cpp:27:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= number_of_vertices_; i++) ^ user.cpp:37:60: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int neighbour = 0; neighbour < edges_[vertex].size(); neighbour++) { ^ user.cpp:38:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (distances[edges_[vertex][neighbour]] ==-1 && vertex != source) { ^