Problem	learning
User	Pan
Submission Time	2024-01-23 11:32:51
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

learning.cpp: In function ‘int main()’:
learning.cpp:19:2: error: ‘cout’ was not declared in this scope
19 | cout << ans << endl;
| ^~~~
learning.cpp:19:17: error: ‘endl’ was not declared in this scope
19 | cout << ans << endl;
| ^~~~