2 lines
267 B
Markdown
2 lines
267 B
Markdown
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Not much to say here, we save the factorial values to increase speed and operate almost entirely on the stack (also for speed).
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The rest is brute force. Our upper limit is `9!*7 = 2540160`, because `9!*8` has only 7 digits and so is impossible to be a curious number.
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