freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-323-bitwise-or-operations-on-random-integers.md
Oliver Eyton-Williams ee1e8abd87
feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

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---
id: 5900f4b01000cf542c50ffc2
title: 问题323对随机整数进行按位或运算
challengeType: 5
videoUrl: ''
dashedName: problem-323-bitwise-or-operations-on-random-integers
---
# --description--
令y0y1y2...是随机无符号32位整数的序列
即0≤yi &lt;232每个值的可能性均等
对于序列xi给出以下递归x0 = 0且
xi = xi-1 | yi-1对于i>0。|是按位或运算符)
可以看出对于所有i≥N最终将存在一个索引N使得xi = 232 -1所有比特的位模式
找到N的期望值。 将答案四舍五入到小数点后10位。
# --hints--
`euler323()`应该返回6.3551758451。
```js
assert.strictEqual(euler323(), 6.3551758451);
```
# --seed--
## --seed-contents--
```js
function euler323() {
return true;
}
euler323();
```
# --solutions--
```js
// solution required
```