any hints
sure thanks
For example, in the case of "1341", they are 1, 1, 3, 13, 41, 341, 1341, a total of 7 numbers.
why 1 comes twice
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any hints
sure thanks
For example, in the case of "1341", they are 1, 1, 3, 13, 41, 341, 1341, a total of 7 numbers.
why 1 comes twice