In the Opera browser, I had to switch to bright mode using the switch at the top right corner of the CW window. In dark mode, the dark text was really hard to read.

I would prefer a project configuration in CW in which Check for arithmetic overflow is activated. I would rather not know how often an undetected integer overflow occurs in the random tests for both the user code and the sensei code and the solution is considered valid.

the solution is displayed as best pratices but DRY (LCM(x, y) is calculated twice)

I assume that I can transfer the characters correctly from the browser to VS, i.e. converting from UTF8 to Unicode. `

"ẞtß".ToLower() gives hex:"DF-00-74-00-DF-00", therefore "t" is the single non-repeating char.

I make the same steps with "σtς" which gives: hex	"C3-03-74-00-C2-03".
From this result I would conclude that "σ" is the first non-repeating character. What is my mistake?

VS displays your 3rd string with an obviously different character than the browser.

I would like to know why there are so few solutions with Linq (estimated less than 10% of the solutions are done with Linq), although a Linq solution can usually be understood much faster than an interative solution

Thank you very much. I have found a nice Linq solution with SingleOrDefault()

(csharp)I can't find out why the result for this input:

copies=*v*l****, ***l]*W*, +vg*]WWN, +*g****N, *WYhDw*d, 8WYhD*Y*, *WY*Dw*d, 8WYhD*Yd, 8WYh*wYd

should be:

+vgl]WWN

notice: some strings start with '+' und some strings start with '8' and some with '*'

Can someone help me please?

(C#) In VS the random tests use \n but the tests defined by verbatim strings (i.e. @"...") use \r\n AFTER copying to VS.The codewars environment uses \n in both cases. Your solution should replace as first operation \r\n by \n:

snapshot.Replace("\r\n","\n")
In this case you cannot write: snapshot.Split(Environment.NewLine)

The windows ansi (e.g) encoding for "¤" is 164 but the UTF8-Encoding for "¤" is: {194, 164} or in Trinary {"21012", "20002"}. The question mark means there is no valid UTF8 encoding given.
As you can see in https://en.wikipedia.org/wiki/UTF-8 under the heading "Code point UTF-8 conversion" there are 2 bytes required for the character "¤" resp. &currenc resp. Ansi1252 = 164
The assert should be

 Assert.That(source.FromTrinary("010210 010220 010221 010202 010222 010211 010221 010222 010222 010222 021012 020002 001101 001022 001020"), Is.EqualTo("fijekgjkkk¤%#!"));

Please note the inserted 021012.

I suggest adding test cases where the date of birth is exactly n years before the current date and is in a leap year

What a wonderful kata. After you solved it you will like it.