perplexus.info :: Algorithms : Lexicographic Listing

Lexicographic Listing (Posted on 2022-05-29)

N is a positive integer divisible by 7, and N does NOT contain the digit 9.

Devise an algorithm to lexicographically list all valid values of N ≤ 2022.

No Solution Yet Submitted by K Sengupta

Rating: 4.0000 (1 votes)

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technicality re the Roman Numeral answer

Comment 3 of 3 |

Once converted to a Roman Numeral, no integer can contain the digit 9, only letters. So technically, multiples of 7 such as 49, 91 etc could still be on the list as XLIX and XCI

Posted by Larry on 2022-05-30 05:48:21

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