Problem	3nplus1
User	Hihihihihi
Submission Time	2026-06-29 09:14:27
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

3nplus1.cpp: In function ‘int main()’:
3nplus1.cpp:12:13: error: unable to find numeric literal operator ‘operator""n’
12 | else cout<<3n+1;
| ^~