Problem	addition
User	Rimail
Submission Time	2026-06-22 14:17:38
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

addition.cpp:2:16: error: expected identifier before ‘.’ token
2 | using namespace.std
| ^
addition.cpp:2:16: error: expected ‘;’ before ‘.’ token
2 | using namespace.std
| ^
| ;
addition.cpp:2:16: error: expected unqualified-id before ‘.’ token