[問題] Brain Storming
You are invited to the Cat Kingdom for the coronation.
They offered the King 8 identical-looking crowns to choose from.
Seven of them weigh the same, and the only one weighs slightly less.
The King wants the light one.
You have to help him to find out the light one. But you can only use
balance scales in ONLY TWO weighings. What do you do then?
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