Eroare de compilare: main.cpp: In member function 'void Graph_Solver::dfs_biconex(int, int)': main.cpp:44:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int i = 0; i < v[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph_Solver::solve_biconex()': main.cpp:85:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for(int j = 0; j < sol[i].size(); ++j) | ~~^~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph_Solver::solve_scc()': main.cpp:123:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 123 | for(int j = 0; j < sol[i].size(); ++j) | ~~^~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph_Solver::solve_toposort()': 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 j = 0; j < v[p].size(); j++) | ~~^~~~~~~~~~~~~ main.cpp: In member function 'int Graph_Solver::maxflow()': main.cpp:442:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 442 | for (int j = 0; j < v[nod].size(); j++) | ~~^~~~~~~~~~~~~~~ main.cpp:452:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 452 | for (int i=0;i<v[n].size();i++) | ~^~~~~~~~~~~~ main.cpp: In member function 'void Graph_Solver::euler_cycle()': main.cpp:567:26: error: request for member 'first' in '(&((Graph_Solver*)this)->Graph_Solver::v.std::vector<std::vector<int> >::operator[](((std::vector<std::vector<int> >::size_type)st)))->std::vector<int>::back()', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} 567 | int a = v[st].back().first; | ^~~~~ main.cpp:568:26: error: request for member 'second' in '(&((Graph_Solver*)this)->Graph_Solver::v.std::vector<std::vector<int> >::operator[](((std::vector<std::vector<int> >::size_type)st)))->std::vector<int>::back()', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} 568 | int b = v[st].back().second; | ^~~~~~ main.cpp:570:8: error: 'was' was not declared in this scope 570 | if(was[b]) | ^~~ main.cpp:573:5: error: 'was' was not declared in this scope 573 | was[b] = 1; | ^~~ main.cpp:576:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 576 | for(int i = 0; i < sol.size(); ++i) | ~~^~~~~~~~~~~~ Non zero exit status: 1