Eroare de compilare: main.cpp: In function 'void dfs(int)': main.cpp:14:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < lista[x].size(); i++) ~~^~~~~~~~~~~~~~~~~ main.cpp:18:39: error: invalid initialization of reference of type 'std::pair<int, int>&' from expression of type 'std::pair<const int, int>' for (pair <int, int> &z : mp[y]) ^ main.cpp: In function 'int main()': main.cpp:36:10: error: 'i' was not declared in this scope for (i = 1; i < n; i++) ^ main.cpp:42:10: error: 'i' was not declared in this scope for (i = 1; i <= n; i++) ^ main.cpp:45:10: error: 'i' was not declared in this scope for (i = 1; i <= n; i++) ^ Non zero exit status: 1