Problem	sum2
User	Hihihihihi
Submission Time	2026-06-25 09:25:58
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

sum2.cpp:2:20: error: expected ‘;’ before ‘:’ token
2 | using namespace std:
| ^
| ;
sum2.cpp:2:20: error: expected unqualified-id before ‘:’ token