On 20/04/15 01:36, niy mor wrote:
Is my code completing the assignment???
No.
I need some *guidance* on
completing my assignment.
Try running your code.
Then fix the errors.
If you can't fix them come back to us and ask for help,
including the error message and a description of what
happened and what you expected.
My Attempt Code:
class SparseLifeGrid :
Cell = ["row", "col"]
What is this for?
def __init__( self ):
self._rowList = []
self._colList = []
self._cellSet = set()
def _binarySearch( self, target ) :
low = 0
high = len(self._cellSet - 1)
while low <= high :
mid = (high + low) // 2
if theList[mid] == target :
return (True, mid)
elif target < theList[mid] :
high = mid - 1
else :
low = mid + 1
return (False, low)
This just tells you which half the item is in.
Is that what you wanted?
def minRange( self ):
return (sorted(self._rowList)[0], sorted(self._rowList)[0])
This returns the same value twice.
def maxRange( self ):
return (sorted(self._rowList, reverse = True)[0],\
sorted(self._colList, reverse = True)[0])
You don;t need the line continuation character (/) if you are inside parens.
def f():
return (expression1,
expression2)
# Clears the individual cell (row, col) and sets it to dead. If the
cell is
# already dead, no action is taken
def clearCell( self, row, col ):
for item in self :
if item == Cell(row, col) :
self.remove(item)
How do you expect to iterate over self? self is your class instance
but it has nothing to iterate over?
def setCell( self, row, col ):
LIVE_CELL = 1
Cell[row, col] = LIVE_CELL
Here you create a new Cell instance then try to assign a value to it,
then throw it away. I'm pretty sure thats not what you want.
def isLiveCell( self, row, col):
return Cell(row,col) in self
Again how are you testing 'in' self. There is nothing in
your class to support that.
def numLiveNeighbors( self, row, col ):
surround = 0
if self.isLiveCell(row + 1, col) :
surround += 1
if self.isLiveCell(row - 1, col) :
surround += 1
if self.isLiveCell(row, col + 1) :
surround += 1
if self.isLiveCell(row, col - 1) :
surround += 1
How many neighbours does a cell have in a Life grid?
Is it only 4?
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos
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