Problem	4russians
User	kxd
Submission Time	2023-03-16 22:42:21
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

4russians.cpp: In function ‘int main()’:
4russians.cpp:47:11: error: ‘a’ was not declared in this scope
47 | ret += a[n-i];
| ^