Problem	segmenttree
User	Sans12345
Submission Time	2025-12-09 17:55:16
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

segmenttree.cpp: In constructor ‘perseg::node::node(ll, ll, ll)’:
segmenttree.cpp:13:13: error: ‘M’ was not declared in this scope
13 | M = S+E>>1;
| ^
segmenttree.cpp: In constructor ‘perseg::node::node(perseg::node*, perseg::node*, ll, ll)’:
segmenttree.cpp:26:13: error: ‘M’ was not declared in this scope
26 | M = S+E>>1;
| ^