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447 B
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Executable file
9 lines
No EOL
447 B
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Executable file
__author__ = "bt3"
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This is the classic "you have 8 balls/coins, which are the same weight, except for one which is slightly heavier than the others. You also have an old-style balance. What is the fewest number of weighings to find the heavy coin/ball?
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Answer: 2! You need to use every information available:
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Weight 3 x 3 balls/coins.
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If they weight the same: weight the 2 balls/coins left outside.
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Else, measure 2 of the 3 heavier balls/coins. |