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freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-354-distances-in-a-bees-honeycomb.md
gikf c18554dd44 fix(curriculum): clean-up Project Euler 341-360 (#42998)
* fix: clean-up Project Euler 341-360

* fix: improve wording

Co-authored-by: Sem Bauke <46919888+Sembauke@users.noreply.github.com>

* fix: corrections from review

Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>

Co-authored-by: Sem Bauke <46919888+Sembauke@users.noreply.github.com>
Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
2021-07-29 19:14:22 +02:00

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---
id: 5900f4cf1000cf542c50ffe1
title: 'Problem 354: Distances in a bee''s honeycomb'
challengeType: 5
forumTopicId: 302014
dashedName: problem-354-distances-in-a-bees-honeycomb
---
# --description--
Consider a honey bee's honeycomb where each cell is a perfect regular hexagon with side length 1.
<img class="img-responsive center-block" alt="honeycomb with hexagon sides of length 1" src="https://cdn.freecodecamp.org/curriculum/project-euler/distances-in-a-bees-honeycomb.png" style="background-color: white; padding: 10px;">
One particular cell is occupied by the queen bee. For a positive real number $L$, let $B(L)$ count the cells with distance $L$ from the queen bee cell (all distances are measured from centre to centre); you may assume that the honeycomb is large enough to accommodate for any distance we wish to consider.
For example, $B(\sqrt{3}) = 6$, $B(\sqrt{21}) = 12$ and $B(111\\,111\\,111) = 54$.
Find the number of $L ≤ 5 \times {10}^{11}$ such that $B(L) = 450$.
# --hints--
`distancesInHoneycomb()` should return `58065134`.
```js
assert.strictEqual(distancesInHoneycomb(), 58065134);
```
# --seed--
## --seed-contents--
```js
function distancesInHoneycomb() {
return true;
}
distancesInHoneycomb();
```
# --solutions--
```js
// solution required
```