Problem	uniquenumbers
User	xiachengruisg
Submission Time	2026-10-29 22:21:55
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

uniquenumbers.cpp: In function ‘int main()’:
uniquenumbers.cpp:14:15: error: ‘arr’ was not declared in this scope
14 | for (auto y: arr){
| ^~~