Eroare de compilare: main.cpp: In function 'void dfs(int)': main.cpp:19:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:41:9: error: 'fre' was not declared in this scope; did you mean 'free'? 41 | fre[b]++; | ^~~ | free main.cpp:45:12: error: 'fre' was not declared in this scope; did you mean 'free'? 45 | if(fre[i]==0) | ^~~ | free main.cpp:47:13: error: 'root' was not declared in this scope 47 | root=i; | ^~~~ main.cpp:51:11: error: 'root' was not declared in this scope 51 | depth[root]=1; | ^~~~ Non zero exit status: 1