Problem	ningning
User	Shadow1
Submission Time	2024-12-21 12:48:51
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

ningning.cpp: In function ‘void dfs2(long long int, long long int, long long int)’:
ningning.cpp:48:36: error: ‘n’ was not declared in this scope
48 | ans[v] = cost + (a[u] ^ a[v]) * (n - sub[u]);
| ^