Munchausen numbers: Difference between revisions
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=={{header|J}}== |
=={{header|J}}== |
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Here, it would be useful to have a function which sums the powers of the digits of a number. Once we have that we can use |
Here, it would be useful to have a function which sums the powers of the digits of a number. Once we have that we can use it with an equality test to filter those integers: |
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<lang J> munch=: +/@(^~@(10&#.inv)) |
<lang J> munch=: +/@(^~@(10&#.inv)) |
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