Problem	staircase
User	Schzeey2
Submission Time	2024-01-06 01:37:09
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

staircase.cpp: In function ‘int main()’:
staircase.cpp:9:14: error: ‘arr’ was not declared in this scope
9 | std::cin >> arr[i];
| ^~~