Compilare: main.cpp: In member function 'void Graph::DFS(int, std::vector<int>&)': main.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0; i < edges[start].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In destructor 'Graph::~Graph()': main.cpp:106:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | for(int i = 1; i <= edges.size(); ++i) | ~~^~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::printEdges()': main.cpp:112:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 112 | for(int i = 1; i < edges.size(); i++) | ~~^~~~~~~~~~~~~~