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力扣（LeetCode）官网 - 全球极客挚爱的技术成长平台
https://leetcode-cn.com
备战技术面试？力扣提供海量技术面试资源，帮助你高效提升编程技能，轻松拿下世界 IT 名企 Dream Offer。
https://leetcode-cn.com
力扣（LeetCode）官网 - 全球极客挚爱的技术成长平台
备战技术面试？力扣提供海量技术面试资源，帮助你高效提升编程技能，轻松拿下世界 IT 名企 Dream Offer。
No 301 redirects are in place to redirect traffic to your preferred domain. Pages that load successfully both with and without www. are treated as duplicate content! Not all versions of your page point to the same URL.
| Attribute | Value |
| ⓘ viewport | width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover |
ⓘ The owner has associated the following topics to the website.
❌ leetcode-cn.com website speed is slow. Page speed is important for visitors and search engines.
Get insights to improve your page loading time.
This domain loads at the median speed of 1.2 seconds.
leetcode-cn.com is faster than approximately 69 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.
A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.
ⓘ This website is ranked #9.371 by Alexa.
This rank is traffic based. The lower the rank is, the better the domain is ranked.
| Country | Rank |
 Japan |
#39.853 |
 Singapore |
#6.254 |
 Taiwan |
#19.623 |
 India |
#337.963 |
 Australia |
#48.773 |
 Canada |
#75.993 |
 United Kingdom of Great Britain and Northern Ireland |
#73.762 |
 Korea (Republic of) |
#61.726 |
 Germany |
#88.806 |
 Russian Federation |
#135.041 |
 Malaysia |
#29.821 |
 France |
#47.575 |
 China |
#832 |
 Hong Kong |
#815 |
 United States of America |
#50.823 |
Mobile Rendering
This website seems to be optimized for Mobile Visitors.
Phone
Tablet
A good text to HTML ratio is anywhere from 25 to 70%.
This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.
Great, we found headings on this page.
However, you have not defined a top level heading, or <H1>. It is used to define the most important heading.
We recommend using one top level heading to set up a semantic relationship between that heading and the remainder of the content on a page. It clearly describes to the readers and the search engines what it is about.
| 5th level heading |
| 参与竞赛： 第 172 场周赛 |
| 参与竞赛： 可能是己亥年最有趣的比赛 |
| Philip 在题目1252. 奇数值单元格的数目新增了题解 思路 |
| Chenrujun 在题目1215. 步进数新增了题解 c++, memory 100%, time 100% |
| Lng 在题目34. 在排序数组中查找元素的第一个和最后一个位置新增了题解 34. 在排序数组中查找元素的第一个和最后一个位置 |
| P1pinch7rz 在题目168. excel表列名称新增了题解 python简洁版 |
| 题目324. 摆动排序 ıı 的题解 时间复杂度近似o(n),空间复杂度o(1)的方法有新的评论 |
| Jack 赞了题目175. 组合两个表 的题解 图解sql面试题：多表如何查询？ |
| 大笨企鹅 在题目1043. 分隔数组以得到最大和新增了题解 使用动态规划，计算出所有可能的最大值组合并累加 |
| 题目136. 只出现一次的数字 的题解 通过哈希集、按位异或操作符解决（解题思路）有新的评论 |
| Havefun 赞了题目36. 有效的数独 的题解 java - 位运算详解(秒懂坐标变换与位运算，不使用数据结构击败98.29%) |
| 题目376. 摆动序列 的题解 摆动序列有新的评论 |
| 塘泥 赞了题目3. 无重复字符的最长子串 的题解 无重复字符的最长子串 |
| Cllover2410 赞了文章redis缓存和mysql数据一致性方案详解 |
| Roachsinai 参与了讨论执行时间和空间都超过100%的紧凑快排算法 |
| 三角和 参与了讨论执行时间和空间都超过100%的紧凑快排算法 |
| 三角和 发起了讨论除了古典算法，你们还练习哪些东西？ |
| Code047 发起了讨论执行时间和空间都超过100%的紧凑快排算法 |
| Joy_hongyun 赞了liweiwei1419 在 如何写好题解？ 下的讨论 |
| Bit_cabinzkk 评论了力扣 (leetcode) 在 这几天力扣总是会上不去 下的讨论 |
We found 35 images on this website.
15
ALT attributes are missing on your image tags. The issue affects 13 actual different images that could be loaded more than once in your page.
Alternative text allows you to add a description to an image.
Google rely on alternative text attributes to determine relevance to a search query. Alternative text also makes an image more likely to appear in a Google image search.
It looks like you're missing alternative text for 15 images on leetcode-cn.com. Check your website to make sure it's specified for each image on the page.
1 of which have the nofollow attribute, meaning that their destination should not be afforded any additional weight or ranking by search engines.
For a better readability, only the first 50 internal links are shown below.
| Anchor | Type | URL |
 |
image | https://support.leetcode-cn.com/user/login/?request=%2fhc%2fkb%2farticle%2f1336943%2f |
 |
image | https://gio.ren/w/yox03moq |
 |
image | https://gio.ren/w/j9ymyd9y |
 |
image | https://datayi.cn/w/xrxmljp5 |
| 沪B2-20180578 | text | https://tsm.miit.gov.cn/dxxzsp/ |
| 上海市互联网违法和不良信息举报中心 | text | http://www.shjbzx.cn/ |
| 中国互联网违法和不良信息举报中心 | text | http://report.12377.cn:13225/toreportinputnormal_anis.do |
| © 2020 领扣网络（上海）有限公司版权所有 | text | https://lingkou.com |
| 问题反馈 | text | https://support.leetcode-cn.com/hc/request/new/ |
 |
image | http://www.beian.gov.cn/portal/registersystemınfo?recordcode=31011502007040 |
| 沪ICP备17051546号 | text | http://beian.miit.gov.cn |
| ⓘ Domain Registrar | ALIBABA CLOUD COMPUTING (BEIJING) CO., LTD. |
| ⓘ Registration Date | 11/11/2017 6 years, 11 months, 29 days ago |
| ⓘ Last Modified | 10/16/2018 6 years, 20 days ago |
| ⓘ Expiration Date | 11/11/2020 Expired |
| Domain |
Others (10.4%)
SOCIAL MEDIA PRESENCE
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