62 lines
1.7 KiB
Markdown
62 lines
1.7 KiB
Markdown
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---
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id: 5900f3901000cf542c50fea3
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challengeType: 5
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title: 'Problem 36: Double-base palindromes'
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videoUrl: ''
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localeTitle: 问题36：双基回文
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---
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## Description
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<section id="description">十进制数，585 = 10010010012（二进制），在两个碱基中都是回文。找到所有数字的总和，小于n，而1000 <= n <= 1000000，它们在基数10和基数2中是回文的。（请注意，任一基数中的回文数可能不包括前导零。） </section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>doubleBasePalindromes(1000)</code>应该返回1772。
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testString: 'assert(doubleBasePalindromes(1000) == 1772, "<code>doubleBasePalindromes(1000)</code> should return 1772.");'
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- text: <code>doubleBasePalindromes(50000)</code>应该返回105795。
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testString: 'assert(doubleBasePalindromes(50000) == 105795, "<code>doubleBasePalindromes(50000)</code> should return 105795.");'
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- text: <code>doubleBasePalindromes(500000)</code>应该返回286602。
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testString: 'assert(doubleBasePalindromes(500000) == 286602, "<code>doubleBasePalindromes(500000)</code> should return 286602.");'
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- text: <code>doubleBasePalindromes(1000000)</code>应该返回872187。
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testString: 'assert(doubleBasePalindromes(1000000) == 872187, "<code>doubleBasePalindromes(1000000)</code> should return 872187.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function doubleBasePalindromes(n) {
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// Good luck!
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return n;
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}
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doubleBasePalindromes(1000000);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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