Compilare: main.cpp: In member function 'void graf::BFS(int)': main.cpp:124:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 124 | while (i<queue.size()) | ~^~~~~~~~~~~~~ main.cpp:127:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 127 | for ( int i=0; i<this-> adj[start].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::DFS(int, bool*, int&)': main.cpp:161:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 161 | 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:187:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 187 | for ( int i=0; i<this-> adj[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::apm()': main.cpp:219:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 219 | for ( int i=0; i<lista_muchii_greutati.size() && nrm!=this->n-1; ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:265:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 265 | for ( int i=0; i<sol.size(); ++i) | ~^~~~~~~~~~~ main.cpp: In member function 'void graf::apm1()': main.cpp:332:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 332 | for (int i = 0; i < sol.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In member function 'void graf::dijkstra()': main.cpp:429:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 429 | for (int i=0; i< adj[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::dijkstra1()': main.cpp:478:9: warning: variable 'parent' set but not used [-Wunused-but-set-variable] 478 | int parent[this->n]; //Stores Shortest Path Structure | ^~~~~~ main.cpp: In member function 'void graf::Bellman_Ford()': main.cpp:547:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 547 | for (j=1; j< adj.size(); ++j) | ~^~~~~~~~~~~~ main.cpp:550:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 550 | for (k=0; k< adj[j].size(); ++k) | ~^~~~~~~~~~~~~~~ main.cpp:564:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 564 | for (j=1; j< adj.size(); ++j) | ~^~~~~~~~~~~~ main.cpp:567:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 567 | for (k=0; k< adj[j].size(); ++k) | ~^~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::dijkstra1()': main.cpp:516:15: warning: 'vertex' may be used uninitialized in this function [-Wmaybe-uninitialized] 516 | parent[j] = U;