Problem	ny_mathexam
User	LimCheeHann
Submission Time	2026-03-04 15:03:17
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

ny_mathexam.cpp: In function ‘int main()’:
ny_mathexam.cpp:3:14: error: ‘r’ was not declared in this scope
3 | std::cin >> r;
| ^