68 lines
1.0 KiB
Markdown
68 lines
1.0 KiB
Markdown
---
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id: 5900f4131000cf542c50ff25
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challengeType: 5
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title: 'Problem 166: Criss Cross'
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---
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## Description
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<section id='description'>
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A 4x4 grid is filled with digits d, 0 ≤ d ≤ 9.
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It can be seen that in the grid
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6 3 3 0
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5 0 4 3
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0 7 1 4
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1 2 4 5
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the sum of each row and each column has the value 12. Moreover the sum of each diagonal is also 12.
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In how many ways can you fill a 4x4 grid with the digits d, 0 ≤ d ≤ 9 so that each row, each column, and both diagonals have the same sum?
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</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>euler166()</code> should return 7130034.
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testString: assert.strictEqual(euler166(), 7130034, '<code>euler166()</code> should return 7130034.');
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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 euler166() {
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// Good luck!
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return true;
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}
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euler166();
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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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