chore(i8n,learn): processed translations

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2021-02-06 04:42:36 +00:00
committed by Mrugesh Mohapatra
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---
id: 5900f52a1000cf542c51003c
title: 问题445撤回A.
title: 'Problem 445: Retractions A'
challengeType: 5
videoUrl: ''
forumTopicId: 302117
dashedName: problem-445-retractions-a
---
# --description--
对于每个整数n> 1函数族fnab由fnabx≡ax+ b mod n定义为abx整数和0
For every integer n>1, the family of functions fn,a,b is defined
对于c = C100 000k1≤k≤99999≡628701600mod 1 000 000 007给出ΣRcCnk是二项式系数
by fn,a,b(x)≡ax+b mod n for a,b,x integer and 0
找到ΣRc得c = C10 000 000k1≤k≤9999 999.给出你的答案模1 000 000 007。
You are given that ∑ R(c) for c=C(100 000,k), and 1 ≤ k ≤99 999 ≡628701600 (mod 1 000 000 007). (C(n,k) is the binomial coefficient).
Find ∑ R(c) for c=C(10 000 000,k), and 1 ≤k≤ 9 999 999. Give your answer modulo 1 000 000 007.
# --hints--
`euler445()`应该返回659104042
`euler445()` should return 659104042.
```js
assert.strictEqual(euler445(), 659104042);