Problem	potatotree
User	Tonko
Submission Time	2025-06-15 23:27:07
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

potatotree.cpp: In function ‘int main()’:
potatotree.cpp:20:12: error: ‘seen’ was not declared in this scope
20 | if(seen.count(A[i]) == 0) {
| ^~~~