fix: Improve formatting for Pascal's triangle challenge (#35531)

pull/27072/head
Oliver Eyton-Williams 2019-03-06 21:25:37 +01:00 committed by Aditya
parent 6d24b879f2
commit 51fcc8e509
1 changed files with 10 additions and 72 deletions

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@ -8,83 +8,21 @@ title: 'Problem 148: Exploring Pascal''s triangle'
<section id='description'>
We can easily verify that none of the entries in the first seven rows of Pascal's triangle are divisible by 7:
 1
 1
 1
 1
 2
 1
 1
 3
 3
 1
 1
 4
 6
 4
 1
 1
 5
10
10
 5
 1
1
 6
15
20
15
 6
 1
<pre>
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
</pre>
However, if we check the first one hundred rows, we will find that only 2361 of the 5050 entries are not divisible by 7.
Find the number of entries which are not divisible by 7 in the first one billion (109) rows of Pascal's triangle.
</section>
## Instructions
<section id='instructions'>
Find the number of entries which are not divisible by 7 in the first one billion (10<sup>9</sup>) rows of Pascal's triangle.
</section>
## Tests