freeCodeCamp

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id	challengeType	title	forumTopicId
5900f44b1000cf542c50ff5d	5	Problem 222: Sphere Packing	301865

Description

What is the length of the shortest pipe, of internal radius 50mm, that can fully contain 21 balls of radii 30mm, 31mm, ..., 50mm?

Give your answer in micrometres (10-6 m) rounded to the nearest integer.

tests:
  - text: <code>euler222()</code> should return 1590933.
    testString: assert.strictEqual(euler222(), 1590933);

function euler222() {
  // Good luck!
  return true;
}

euler222();

// solution required