On Haskell there is a bug in testing code:

In random tests, for example, having a list of monomials: ("", -1), ("b", -9), <...>
so, the system says:
expected: "--9b+ <...>"
got: "-9b <...>"

Obviously, that testing code doesn't work correct for monomial "-1", because, it reduces that to "-" (like "-1a" should be reduced to "-a")

So, could you please, check this behaviour and fix it?

Regards

fork

Python fork (author gone)

• proper use of the test framework
• random tests (fixing this issue)

😄👍

Thank you for this kata! Nice! I've been solving for a long time, but i enjoyed it.

How do I understand which tests were used in the section "More complicated tests"? Otherwise I won't understand how to fix the code. All other tests are solved correctly.

I still am struggling to understand this🤔. Can someone explain it in a dummy way, please?

doesn't "5ab" have a number of variables greater than "-c"?
Maybe you're misunderstanding the instructions. Each letter is a variable, you must sort by the "number of variables", not by the coefficient

low

One of the test cases is looking for -c+5ab but the instructions say:

All monomials appears in order of increasing number of variables, e.g.:
"-abc+3a+2ac" -> "3a+2ac-abc", "xyz-xz" -> "-xz+xyz"

First comment I've left on this website; nice job

I thought mine was the most optimal. Lol