Compilare: main.cpp: In member function 'void graf::BFS(int)': main.cpp:102:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | while (i<queue.size()) | ~^~~~~~~~~~~~~ main.cpp:105:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | for ( int i=0; i<this-> adj[start].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::DFS(int, bool*, int&)': main.cpp:139:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | 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:165:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 165 | for ( int i=0; i<this-> adj[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::apm()': main.cpp:234:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 234 | for (int i = 0; i < mst.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In member function 'void graf::dijkstra()': main.cpp:331:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 331 | for (int i=0; i< adj[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::dijkstra1()': main.cpp:380:9: warning: variable 'parent' set but not used [-Wunused-but-set-variable] 380 | int parent[this->n]; //Stores Shortest Path Structure | ^~~~~~ main.cpp:418:15: warning: 'vertex' may be used uninitialized in this function [-Wmaybe-uninitialized] 418 | parent[j] = U; | ~~~~~~~~~~^~~