Bob,

brilliant stuff -- I am truly awed by this. Create a default-filled matrix and mark combinations used so as to take them out of the game? Wow. This is new to me.

On 03/02/10 15:46, bob gailer wrote

def askQuestions(): # generate and ask questions:
for i in range(NQ):
while 1: # loop till we get an unused combo
x, y = [random.randint(1,MAX) for i in 'ab']
if mtable[x][y] == 1: # combo is available
break
askQuestion(x,y)
# indicate asked
mtable[x][y] = 0
mtable[y][x] = 0

Here you lose me, though. Where does mtable come from, what does it do? You don't introduce it as a variable, and when I google it, nothing much comes of if...

David
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