freeCodeCamp/curriculum/challenges/chinese/08-coding-interview-prep/project-euler/problem-309-integer-ladders.chinese.md

id, challengeType, title, videoUrl, localeTitle

id	challengeType	title	videoUrl	localeTitle
5900f4a11000cf542c50ffb4	5	Problem 309: Integer Ladders

Description

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Instructions

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Tests

tests:
  - text: ''
    testString: 'assert.strictEqual(euler309(), 210139, "<code>euler309()</code> should return 210139.");'

Challenge Seed

function euler309() {
  // Good luck!
  return true;
}

euler309();

Solution

// solution required