Compilare: main.cpp: In member function 'void Graf::BFS()': main.cpp:103:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 103 | for(int i = 0; i < A[x].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp: In member function 'void Graf::DFS(int, std::vector<bool>&, std::stack<int>&)': main.cpp:129:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 129 | for(int i = 0; i < A[start].size(); i++){ | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::Bellman(int)': main.cpp:520:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 520 | for(int i = 0; i < Ca[nod].size(); i++){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::Royfloyd()': main.cpp:572:9: warning: unused variable 'i' [-Wunused-variable] 572 | int i,j,k; | ^ main.cpp:572:11: warning: unused variable 'j' [-Wunused-variable] 572 | int i,j,k; | ^ main.cpp:572:13: warning: unused variable 'k' [-Wunused-variable] 572 | int i,j,k; | ^ main.cpp: In member function 'void Graf::DFSA(int, int, std::vector<bool>&, int&, int&)': main.cpp:606:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 606 | for(int i = 0; i < A[s].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp: In member function 'void Graf::Eulerian()': main.cpp:694:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 694 | for(int i = 0; i < sol.size(); i++){ | ~~^~~~~~~~~~~~ main.cpp: In member function 'void Graf::Hamiltonian()': main.cpp:730:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 730 | for(int ind = 0; ind < A[j].size(); ind++){ | ~~~~^~~~~~~~~~~~~ main.cpp:741:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 741 | for(int ind = 0; ind < A[i].size(); ind++){ | ~~~~^~~~~~~~~~~~~