freeCodeCamp/curriculum/challenges/portuguese/10-coding-interview-prep/project-euler/problem-458-permutations-of...

45 lines
762 B
Markdown
Raw Normal View History

---
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
```