Problem	potatotree
User	YH
Submission Time	2024-05-24 20:05:39
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

potatotree.cpp:5:1: error: ‘set’ does not name a type
5 | set<int> s;
| ^~~
potatotree.cpp: In function ‘int main()’:
potatotree.cpp:16:3: error: ‘s’ was not declared in this scope
16 | s.insert(x);
| ^