freeCodeCamp/problem-213-flea-circus.english.md at 92377cf71af628cb5ea6b28ff7d6fa66a9b52449

mrugesh 22afc2a0ca feat(learn): python certification projects (#38216 )

Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Co-authored-by: Kristofer Koishigawa <scissorsneedfoodtoo@gmail.com>
Co-authored-by: Beau Carnes <beaucarnes@gmail.com>

2020-05-27 13:19:08 +05:30

1.0 KiB

Raw Blame History

id, challengeType, isHidden, title, forumTopicId

id	challengeType	isHidden	title	forumTopicId
5900f4411000cf542c50ff54	5	false	Problem 213: Flea Circus	301855

Description

A 30×30 grid of squares contains 900 fleas, initially one flea per square. When a bell is rung, each flea jumps to an adjacent square at random (usually 4 possibilities, except for fleas on the edge of the grid or at the corners).

What is the expected number of unoccupied squares after 50 rings of the bell? Give your answer rounded to six decimal places.

Instructions

Tests

tests:
  - text: <code>euler213()</code> should return 330.721154.
    testString: assert.strictEqual(euler213(), 330.721154);

Challenge Seed

function euler213() {
  // Good luck!
  return true;
}

euler213();

Solution

// solution required

1.0 KiB Raw Blame History Unescape Escape