Problem	festival
User	shenshiqi
Submission Time	2026-05-10 12:58:53
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

festival.cpp: In function ‘std::vector<int> max_coupons(int, std::vector<int>, std::vector<int>)’:
festival.cpp:52:3: error: ‘taken’ was not declared in this scope
52 | taken[maxIdx] = true;
| ^~~~~