You have an old-fashioned refrigerator with a small freezer compartment capable of holding seven ice cube trays stacked vertically. But there are no shelves to separate the trays, and if you stack one tray on top of another before the ice cubes in the bottom tray are fully frozen, the top tray will nestle into it, and you won't get full cubes in the bottom tray. You have an unlimited supply of trays, each of which can make a dozen cubes.

What's the fastest way to make full-sized ice cubes?

Well, if it's ok, fill one, then put an empty one on top of that upside down, then another full one, then an upside-down empty, then a full, then an upside down empty, then a full. That will make you 4. Then put those on bottom and do the same thing, full-empty-full on top, then when that's done, put the 6 frozen on bottom and the last one filled to be frozen on top. It'll take three cycles. Meanwhile, buy a damn icemaker.

Posted by Lawrence on 2003-08-24 12:04:39