Re: [Haskell-cafe] simple state monad exercises? (besides labeling trees)

I used the State monad to implement a Brainfuck [1] interpreter a few months ago. It stored the program counter, pointer and the memory of the machine. There might have been a different (better?) way, but as I was trying to learn more about monads, it was an obvious choice. Thomas [1] http://www.muppetlabs.com/~breadbox/bf/ On Mon, Jul 6, 2009 at 18:54, Thomas Hartman<tphyahoo@gmail.com> wrote:

Can someone give some simple common scenarios where the state monad is useful, besides labeling trees?

References to puzzles like those in project Euler or similar would be nice.

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