Jim Burton wrote:
Ronald Guida wrote:
Hi, again.
I started looking at the Euler problems [1]. I had no trouble with problems 1 through 10, but I'm stuck on problem 11. I am aware that the solutions are available ([2]), but I would rather not look just yet. [...]
FWIW I used a 2D array and a function to retrieve the values in every direction from a given row,col, for each direction valid for that array index. Getting the 4 vals in each direction is done by iterating 2 functions on the (row,col) index to move in the right direction I.e.,
vals (row,col) = north : south : ... : [] where north = if toohigh then [] else stream (subtract 1) (id) south = if toolow then [] else stream (+1) (id) .......
where `stream' is badly named -- rather than a stream it's the 4 vals in that direction. -- View this message in context: http://www.nabble.com/Hints-for-Euler-Problem-11-tf4114963.html#a11710683 Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com.