Problem	fenwicktree
User	PlayVoltz
Submission Time	2023-09-02 19:58:17
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

fenwicktree.cpp: In function ‘void build()’:
fenwicktree.cpp:9:3: error: ‘update’ was not declared in this scope
9 | update(i, arr[i]);
| ^~~~~~