What follows is my highly opinionated point of view on the matter, I tried to write the few things I know and think about whiteboard interviews. I hope this helps. If you don't agree with something just comment below, email me, whatever works for you, I want to hear different point of views, me being salty doesn't affect my willingness to listen to people and change my mind.
Also sorry for the wall of text.
In the first interview I got asked the balance parens question:
You have a string made up of just closed and opened parens, write a function that given that string returns
trueif parens are balanced,falseotherwise
This was my approach outside the interview world:
Yes, Idris.
I am going through the exercises, and by the way solutions are here, so the first one is to find if a string is palindrome. So I wrote
palindrome : String -> Bool
So I've added the Idris layer into my Spacemacs config and everything is working perfectly, aaaah. Colors are ok, indentation
too, and the REPL works as expected, the only thing that got me thinking was the (Not loaded) message under the buffer in
which I have Idris code, but now it makes perfect sense, it says that when you have changes that haven't been loaded in
the REPL, I just need to ,r to load it
First I tried with cabal install idris, but that left me there puzzled because of modules depending with each other
and failing all together happily.
Then I tried with stack, and stack install idris --install-ghc.
The install-ghc flag allows to install the correct version of GHC, which for example on my system was too old.
Which all failed miserably.
So I've a mck interview with an developer from Heap he said it went very well, if there's an area in which I have to get better is recognising big Os. I hate that part of CS, I will try to do more exercises on these
| #!/usr/bin/racket | |
| #lang racket | |
| ;; https://www.cs.indiana.edu/cgi-pub/c311/lib/exe/fetch.php?media=pmatch.scm | |
| ;; pmatch included here ****************** | |
| (define-syntax pmatch | |
| (syntax-rules () | |
| ((_ v c ...) (pmatch-who #f v c ...)))) | |
| (define-syntax pmatch-who |
I've done quite a few interviews today. One of which I don't think went that well, strangely enough it was the first informal interview where I performed badly.
I've got a few questions but the most interesting was the one that I'm about to present, I've changed the wording and
Man do I feel sick today.
I also pair programmed on implementing a trie in Racket, really entertaining stuff. This is the result of us pairing on it.
