Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for(int i=0;i<q[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:27:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 27 | for(int i=1;i<=n;i++) | ^~~ main.cpp:29:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 29 | for(int i=1;i<=m;i++) | ^~~