Compilare: main.cpp: In function 'bool DFS(int, int)': main.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for (int i = 0; i < adj[nod].size(); i++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'bool arbore()': main.cpp:29:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for (int j = 0; j < adj[i].size(); j++) | ~~^~~~~~~~~~~~~~~ main.cpp:30:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int k = 0; k < adj[adj[i][j]].size(); k++) | ~~^~~~~~~~~~~~~~~~~~~~~~~