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

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* 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>
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gikf
2021-07-15 14:26:34 +02:00
committed by GitHub
parent 30c22d1fb3
commit a9418a1fe9
20 changed files with 233 additions and 173 deletions
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18
curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-232-the-race.md
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@ -8,9 +8,15 @@ dashedName: 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 2T-1 points; otherwise, she scores nothing. Player 1 goes first. The winner is the first to 100 or more points.
Two players share an unbiased coin and take it in turns to play "The Race".
On each turn Player 2 selects the number, T, of coin tosses that maximises the probability of her winning.
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?
@ -18,10 +24,10 @@ Give your answer rounded to eight decimal places in the form 0.abcdefgh .
# --hints--
`euler232()` should return 0.83648556.
`theRace()` should return `0.83648556`.
```js
assert.strictEqual(euler232(), 0.83648556);
assert.strictEqual(theRace(), 0.83648556);
```
# --seed--
@ -29,12 +35,12 @@ assert.strictEqual(euler232(), 0.83648556);
## --seed-contents--
```js
function euler232() {
function theRace() {
return true;
}
euler232();
theRace();
```
# --solutions--