Problem	fenwicktree_easy
User	wangy412
Submission Time	2023-11-02 22:25:28
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

fenwicktree_easy.cpp: In function ‘int main()’:
fenwicktree_easy.cpp:21:35: error: ‘n’ was not declared in this scope
21 | if (flag) { partial_sum(A, A + n, B+1); flag = 0; }
| ^