Compilare: main.cpp: In member function 'void Graf::dfs_diametru_arbore(int, int, int&, int&, std::vector<int>*, std::vector<int>&)': main.cpp:170:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 170 | for(int i=0;i<adj[nod].size();i++) | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:488:16: warning: unused variable 'm' [-Wunused-variable] 488 | int n, m, op; | ^ main.cpp:488:19: warning: unused variable 'op' [-Wunused-variable] 488 | int n, m, op; | ^~ main.cpp: In constructor 'Disjoint_set::Disjoint_set(int)': main.cpp:99:20: warning: '*<unknown>.Disjoint_set::noduri' is used uninitialized in this function [-Wuninitialized] 99 | this->noduri = noduri; | ^~~~~~