Problem	bananafarm
User	Pan
Submission Time	2023-12-09 21:05:52
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

bananafarm.cpp: In function ‘void build(std::vector<long long int>&)’:
bananafarm.cpp:23:9: error: ‘merge’ was not declared in this scope
23 | merge(a.begin(), a.end(), b.begin(), b.end(), tree[i].begin());
| ^~~~~