Problem	wall
User	PlayVoltz
Submission Time	2024-11-20 16:44:33
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

wall.cpp: In member function ‘int node::query(int)’:
wall.cpp:50:19: error: ‘high’ was not declared in this scope
50 | if (s==e)return high;
| ^~~~