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freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-458-permutations-of-project.md
Oliver Eyton-Williams ee1e8abd87 feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

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Markdown

---
id: 5900f5361000cf542c510049
title: 'Problem 458: Permutations of Project'
challengeType: 5
forumTopicId: 302132
dashedName: problem-458-permutations-of-project
---
# --description--
Consider the alphabet A made out of the letters of the word "project": A={c,e,j,o,p,r,t}.
Let T(n) be the number of strings of length n consisting of letters from A that do not have a substring that is one of the 5040 permutations of "project".
T(7)=77-7!=818503.
Find T(1012). Give the last 9 digits of your answer.
# --hints--
`euler458()` should return 423341841.
```js
assert.strictEqual(euler458(), 423341841);
```
# --seed--
## --seed-contents--
```js
function euler458() {
return true;
}
euler458();
```
# --solutions--
```js
// solution required
```