Problem	goodseq
User	god
Submission Time	2025-09-09 18:11:38
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

goodseq.cpp: In function ‘int main()’:
goodseq.cpp:21:21: error: ‘class std::set<int>’ has no member named ‘add’
21 | numbers_included.add(seq[i]);
| ^~~