Compilare: main.cpp: In member function 'virtual void Unoriented_graph::DFS(int, std::vector<int>&)': main.cpp:107:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | for(int i = 0; i < this->m_adjancency_list[node].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Unoriented_graph::DFSBiconnected(int, int, int, std::vector<int>&, std::vector<int>&, std::vector<std::unordered_set<int> >&, std::stack<std::pair<int, int> >&)': main.cpp:190:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 190 | for(int i = 0; i < this->m_adjancency_list[current_node].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Unoriented_graph::DFSCriticals(int, int&, std::vector<int>&, std::vector<int>&, std::vector<int>&, std::vector<int>&, std::vector<std::vector<int> >&)': main.cpp:259:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 259 | for(int i = 0; i < m_adjancency_list[current_node].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'virtual std::vector<int> Oriented_graph::BFS(int)': main.cpp:399:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 399 | for(int i=0; i < this->m_adjancency_list[curent].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Oriented_graph::tarjan(int, std::stack<int>&, std::vector<int>&, std::vector<int>&, int&, std::vector<int>&, std::vector<std::vector<int> >&)': main.cpp:469:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 469 | for(int i=0; i<this->m_adjancency_list[node].size(); i++){ | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Oriented_graph::DFS_topological_sort(int, std::stack<int>&, std::vector<int>&)': main.cpp:539:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 539 | for(int i = 0; i < this->m_adjancency_list[node].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<std::pair<int, int> > Unoriented_graph_with_costs::prim(int&)': main.cpp:638:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 638 | for(int j = 0; j < this->m_adjancency_list[rad].size(); j++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Unoriented_graph_with_costs::introduce_in_APM(int, std::vector<int>&, std::vector<int>&)': main.cpp:656:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 656 | for(int i = 0; i < this->m_adjancency_list[node].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Unoriented_graph_with_costs::push(int, std::vector<int>&, std::vector<int>&, std::vector<int>&)': main.cpp:706:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 706 | while((index * 2 <= heap.size() - 1 && distances[heap[index]] > distances[heap[index * 2]]) || | ~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:707:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 707 | (index * 2 + 1 <= heap.size() - 1 && distances[heap[index]] > distances[heap[index * 2 + 1]])){ | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:709:89: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 709 | if(distances[heap[index * 2]] < distances[heap[index * 2 + 1]] || index * 2 + 1 > heap.size() - 1){ | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:871:18: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] 871 | g.read_graph("../apm.in"); | ^~~~~~~~~~~ main.cpp:880:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 880 | for(int i = 0; i < apm.size() - 1; i++){ | ~~^~~~~~~~~~~~~~~~