Fixed order of expected and actual and removed the test case for null.

Not sure what do you mean by that.

I think within the confines of the question (notably - indices start at 1), that's not necessarily a problem.

No

Has the test case in C# been fixed yet?

Hi @NGUgeneral

Does the first line of the task The game consists of a grid (7 columns and 6 rows) and the last rule The columns are numbered 0-6 left to right. not clear this up?

How you choose to store the data inside the class is entirely up to you.

Hope this helps.

What is the issue ?

Good old multiply first, then divide against divide first, then multiply?

There are rounding problems with your test cases.

Have you got problems? Feel free to propose some improvements... and I will examine them. Cheers!

Thanks!

Nope, Input states 1000 ≤ year ≤ 9000.
The solution is correct and tests are green.
Why to create plane if customer just wanted regular car?

@FArekkusu ..

• Yeah , that's what i've mentioned in the second point
• But I meant without using array/lists/vectors , Just in one Variable ,Sorry Alex if somepoint has been understood wrongly .. Regards .. Zizou

Idk what you're talking about. You can store numbers as big as 2^inf as an array of bytes. In any language. Calculating so big factorials would actually be a problem.