Problem	cardtrick
User	Huoi
Submission Time	2025-06-18 14:22:28
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

cardtrick.cpp: In function ‘void solve()’:
cardtrick.cpp:22:13: error: ‘ans’ was not declared in this scope; did you mean ‘abs’?
22 | ans += a[i];
| ^~~
| abs
cardtrick.cpp:27:13: error: ‘ans’ was not declared in this scope; did you mean ‘abs’?
27 | ans += a[j];
| ^~~
| abs