Problem	segmenttree2
User	PerihelionfromAphelion
Submission Time	2026-10-19 16:45:12
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

segmenttree2.cpp: In member function ‘long long int node::query(long long int, long long int)’:
segmenttree2.cpp:48:3: error: ‘else’ without a previous ‘if’
48 | else if (y <= M) return l -> query(x, y);
| ^~~~