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#10
Old 01-08-2013, 01:51 PM
jimhsu jimhsu is offline
L2: Beginner
  • Jan 2008
  • 40
  • 16 jimhsu is finding his bearings
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You can do better than that:

I don't know if there are enough unused coupons out there to take it beyond 2 stacked, but someone can try. (also depends on region)

Probably the difficulty of getting n coupons to stack goes up by O(x^n) ... would make a good math problem.
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Last edited by jimhsu; 01-08-2013 at 01:54 PM..