Problem	more_lca
User	user123
Submission Time	2023-09-20 16:51:08
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

more_lca.cpp: In function ‘bool rule(int, int)’:
more_lca.cpp:15:12: error: ‘pre’ was not declared in this scope
15 | return pre[x]<pre[y];
| ^~~