freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-171-finding-numbers...

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id challengeType videoUrl title
5900f4181000cf542c50ff2a 5 问题171找到数字的平方和为正方形的数字

Description

对于正整数n令fn为n的数字在基数10中的平方和例如f3= 32 = 9f25= 22 + 52 = 4 + 25 = 29f442= 42 + 42 + 22 = 16 + 16 + 4 = 36找到所有n的总和的最后九位数0 <n <1020使得fn是一个完美的平方。

Instructions

Tests

tests:
  - text: <code>euler171()</code>应该返回142989277。
    testString: assert.strictEqual(euler171(), 142989277);

Challenge Seed

function euler171() {
  // Good luck!
  return true;
}

euler171();

Solution

// solution required

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