Problem	uniquenumbers
User	shawn
Submission Time	2024-06-29 11:57:44
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

uniquenumbers.cpp: In function ‘int32_t main()’:
uniquenumbers.cpp:16:11: error: missing template arguments before ‘.’ token
16 | if (!set.empty()) cout << a.size();
| ^