Problem	uniquenumbers
User	Minjia
Submission Time	2023-11-08 15:29:48
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

uniquenumbers.cpp: In function ‘int main()’:
uniquenumbers.cpp:8:2: error: expected initializer before ‘int’
8 | int N,x;
| ^~~
uniquenumbers.cpp:9:9: error: ‘N’ was not declared in this scope
9 | cin >> N;
| ^
uniquenumbers.cpp:11:10: error: ‘x’ was not declared in this scope
11 | cin >> x;
| ^
uniquenumbers.cpp:12:3: error: ‘s’ was not declared in this scope
12 | s.insert(x);
| ^
uniquenumbers.cpp:14:10: error: ‘template<class _Key, class _Compare, class _Alloc> class std::set’ used without template arguments
14 | cout << set::size;
| ^~~