Problem	uniquenumbers
User	xiachengruisg
Submission Time	2026-10-29 22:22:06
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

uniquenumbers.cpp: In function ‘int main()’:
uniquenumbers.cpp:15:12: error: ‘arr’ was not declared in this scope
15 | if (find(arr.begin(), arr.end()) == arr.end()){
| ^~~