Compilare: main.cpp: In function 'void DFS(int, int*, std::vector<int>*, std::stack<int>&)': main.cpp:20:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for (int i = 0; i < adjList[start].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:66:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for (int i = 0; i < order.size(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp:68:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for (int j = 0; j < adjList[u].size(); j++) { | ~~^~~~~~~~~~~~~~~~~~~