Compilare: main.cpp: In member function 'void Graph::dfs(int, int, std::vector<int>&)': main.cpp:43:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for (int i = 0; i < this->adj_list[node].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void srevni()': main.cpp:103:20: 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 = 1; i < costs.size(); i++) | ~~^~~~~~~~~~~~~~