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Oliver Eyton-Williams 0bd52f8bd1 Feat: add new Markdown parser (#39800 )

and change all the challenges to new `md` format.

2020-11-27 10:02:05 -08:00

id, title, challengeType, forumTopicId

id	title	challengeType	forumTopicId
5900f4231000cf542c50ff34	Problem 181: Investigating in how many ways objects of two different colours can be grouped	5	301817

--description--

Having three black objects B and one white object W they can be grouped in 7 ways like this:

(BBBW)(B,BBW)(B,B,BW)(B,B,B,W)

(B,BB,W)(BBB,W)(BB,BW)

In how many ways can sixty black objects B and forty white objects W be thus grouped?

--hints--

euler181() should return 83735848679360670.

assert.strictEqual(euler181(), 83735848679360670);

function euler181() {

  return true;
}

euler181();

// solution required