Problem	duckbuttons
User	shenshiqi
Submission Time	2026-02-12 09:57:04
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

duckbuttons.cpp: In function ‘int main()’:
duckbuttons.cpp:18:7: error: ‘sum’ was not declared in this scope
18 | sum += rm;
| ^~~
duckbuttons.cpp:21:13: error: ‘sum’ was not declared in this scope
21 | cout << sum << "\n";
| ^~~