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  1. door = [0]*100 # 100 doors, all in initial state 0
  2. for toggle in xrange(1,101):
  3.     for doorind in xrange(1,101):
  4.         if doorind % toggle == 0:
  5.             if door[doorind-1] == 0: # I should probably do this in one line but whatever
  6.                 door[doorind-1] = 1
  7.             else:
  8.                 door[doorind-1] = 0
  9.  
  10. for doorind in xrange(1,101): # reusing code is for the we-- oh wait
  11.     if door[doorind-1] == 1:
  12.         print "Door " + str(doorind) + " is open."
Success #stdin #stdout 0.01s 7736KB
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Standard input is empty
stdout
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Door 1 is open.
Door 4 is open.
Door 9 is open.
Door 16 is open.
Door 25 is open.
Door 36 is open.
Door 49 is open.
Door 64 is open.
Door 81 is open.
Door 100 is open.
https://ideone.com/IbHgNP
language:
Python (cpython 2.7.16)
created:
9 years ago
visibility:
public

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