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gikf a9418a1fe9 fix(curriculum): clean-up Project Euler 221-240 (#42839)
* fix: clean-up Project Euler 221-240

* fix: corrections from review

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

Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
2021-07-15 14:26:34 +02:00

1.1 KiB

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
5900f4551000cf542c50ff67 Problem 232: The Race 5 301876 problem-232-the-race

--description--

Two players share an unbiased coin and take it in turns to play "The Race".

On Player 1's turn, he tosses the coin once: if it comes up Heads, he scores one point; if it comes up Tails, he scores nothing.

On Player 2's turn, she chooses a positive integer T and tosses the coin T times: if it comes up all Heads, she scores 2^{T - 1} points; otherwise, she scores nothing.

Player 1 goes first. The winner is the first to 100 or more points.

On each turn Player 2 selects the number, T, of coin tosses that maximises the probability of her winning.

What is the probability that Player 2 wins?

Give your answer rounded to eight decimal places in the form 0.abcdefgh .

--hints--

theRace() should return 0.83648556.

assert.strictEqual(theRace(), 0.83648556);

--seed--

--seed-contents--

function theRace() {

  return true;
}

theRace();

--solutions--

// solution required