freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-24-lexicographic-pe...

1.5 KiB

id title challengeType forumTopicId dashedName
5900f3841000cf542c50fe97 Problem 24: Lexicographic permutations 5 301885 problem-24-lexicographic-permutations

--description--

A permutation is an ordered arrangement of objects. For example, 3124 is one possible permutation of the digits 1, 2, 3 and 4. If all of the permutations are listed numerically or alphabetically, we call it lexicographic order. The lexicographic permutations of 0, 1 and 2 are:

012   021   102   120   201   210

What is the nth lexicographic permutation of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9?

--hints--

lexicographicPermutations(699999) should return a number.

assert(typeof lexicographicPermutations(699999) === 'number');

lexicographicPermutations(699999) should return 1938246570.

assert(lexicographicPermutations(699999) == 1938246570);

lexicographicPermutations(899999) should return 2536987410.

assert(lexicographicPermutations(899999) == 2536987410);

lexicographicPermutations(900000) should return 2537014689.

assert(lexicographicPermutations(900000) == 2537014689);

lexicographicPermutations(999999) should return 2783915460.

assert(lexicographicPermutations(999999) == 2783915460);

--seed--

--seed-contents--

function lexicographicPermutations(n) {

  return n;
}

lexicographicPermutations(999999);

--solutions--

// solution required