Compilare: main.cpp: In member function 'void graf::BFS(int)': main.cpp:106:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | while (i < queue.size()) | ~~^~~~~~~~~~~~~~ main.cpp:109:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for (int i = 0; i < this->adj[start].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::DFS(int, bool*, int&)': main.cpp:141:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | for (int i = 0; i < this->adj[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::sortaret(int, bool*, std::stack<int>&)': main.cpp:167:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 167 | for (int i = 0; i < this->adj[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::apm()': main.cpp:237:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 237 | for (int i = 0; i < mst.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In member function 'void graf::dijkstra()': main.cpp:334:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 334 | for (int i = 0; i < adj[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~