Problem	helloworld
User	al3xaaa
Submission Time	2025-06-16 14:06:13
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

helloworld.cpp: In function ‘int main()’:
helloworld.cpp:5:9: error: ‘a’ was not declared in this scope
5 | cin >> a
| ^