Longest common substring

en

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Longest common substring

Quality:

Longest common substring problem - problem of finding the longest string that is a substring of two or more strings. Article "Longest common substring" in English Wikipedia has 22.7 points for quality (as of July 1, 2025). The article contains 2 references and 8 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that language version.

Since the creation of article "Longest common substring", its content was written by 72 registered users of English Wikipedia and edited by 140 registered Wikipedia users in all languages.

The article is cited 67 times in English Wikipedia and cited 176 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #46199 in January 2023
  • Global: #112514 in July 2012

The highest popularity rank from 2008:

  • Local (English): #108130 in November 2014
  • Global: #177782 in November 2014

There are 10 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Longest common substring
22.7477
2Chinese (zh)
最长公共子串
16.1009
3Persian (fa)
بزرگترین زیررشته مشترک
11.1569
4French (fr)
Plus longue sous-chaîne commune
10.9677
5Polish (pl)
Najdłuższy wspólny podłańcuch
8.5601
6Vietnamese (vi)
Bài toán xâu con chung dài nhất
8.5146
7Czech (cs)
Hledání nejdelšího společného podslova
5.7935
8Russian (ru)
Наибольшая общая подстрока
2.2928
9Arabic (ar)
أطول سلسلة فرعية مشتركة
1.6516
10Ukrainian (uk)
Найдовший спільний підрядок
0.4548
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Longest common substring" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Longest common substring
1 100 607
2Russian (ru)
Наибольшая общая подстрока
81 294
3Vietnamese (vi)
Bài toán xâu con chung dài nhất
47 128
4Chinese (zh)
最长公共子串
17 459
5Polish (pl)
Najdłuższy wspólny podłańcuch
9 923
6French (fr)
Plus longue sous-chaîne commune
9 745
7Persian (fa)
بزرگترین زیررشته مشترک
8 558
8Czech (cs)
Hledání nejdelšího společného podslova
459
9Ukrainian (uk)
Найдовший спільний підрядок
443
10Arabic (ar)
أطول سلسلة فرعية مشتركة
165
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Longest common substring" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Longest common substring
1 442
2Russian (ru)
Наибольшая общая подстрока
62
3Chinese (zh)
最长公共子串
54
4French (fr)
Plus longue sous-chaîne commune
34
5Ukrainian (uk)
Найдовший спільний підрядок
13
6Persian (fa)
بزرگترین زیررشته مشترک
11
7Vietnamese (vi)
Bài toán xâu con chung dài nhất
11
8Polish (pl)
Najdłuższy wspólny podłańcuch
9
9Czech (cs)
Hledání nejdelšího společného podslova
7
10Arabic (ar)
أطول سلسلة فرعية مشتركة
5
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Longest common substring" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Longest common substring
72
2Russian (ru)
Наибольшая общая подстрока
16
3Vietnamese (vi)
Bài toán xâu con chung dài nhất
15
4Persian (fa)
بزرگترین زیررشته مشترک
11
5French (fr)
Plus longue sous-chaîne commune
8
6Polish (pl)
Najdłuższy wspólny podłańcuch
7
7Chinese (zh)
最长公共子串
4
8Arabic (ar)
أطول سلسلة فرعية مشتركة
3
9Czech (cs)
Hledání nejdelšího společného podslova
2
10Ukrainian (uk)
Найдовший спільний підрядок
2
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Longest common substring" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Persian (fa)
بزرگترین زیررشته مشترک
1
2Arabic (ar)
أطول سلسلة فرعية مشتركة
0
3Czech (cs)
Hledání nejdelšího společného podslova
0
4English (en)
Longest common substring
0
5French (fr)
Plus longue sous-chaîne commune
0
6Polish (pl)
Najdłuższy wspólny podłańcuch
0
7Russian (ru)
Наибольшая общая подстрока
0
8Ukrainian (uk)
Найдовший спільний підрядок
0
9Vietnamese (vi)
Bài toán xâu con chung dài nhất
0
10Chinese (zh)
最长公共子串
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Longest common substring" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Longest common substring
67
2French (fr)
Plus longue sous-chaîne commune
25
3Russian (ru)
Наибольшая общая подстрока
25
4Ukrainian (uk)
Найдовший спільний підрядок
22
5Chinese (zh)
最长公共子串
19
6Persian (fa)
بزرگترین زیررشته مشترک
11
7Vietnamese (vi)
Bài toán xâu con chung dài nhất
5
8Czech (cs)
Hledání nejdelšího společného podslova
1
9Polish (pl)
Najdłuższy wspólny podłańcuch
1
10Arabic (ar)
أطول سلسلة فرعية مشتركة
0
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
أطول سلسلة فرعية مشتركة
csCzech
Hledání nejdelšího společného podslova
enEnglish
Longest common substring
faPersian
بزرگترین زیررشته مشترک
frFrench
Plus longue sous-chaîne commune
plPolish
Najdłuższy wspólny podłańcuch
ruRussian
Наибольшая общая подстрока
ukUkrainian
Найдовший спільний підрядок
viVietnamese
Bài toán xâu con chung dài nhất
zhChinese
最长公共子串

Popularity rank trends

Best Rank English:
#108130
11.2014
Global:
#177782
11.2014

AI rank trends

Best Rank English:
#46199
01.2023
Global:
#112514
07.2012

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Longest common substring problem from Wikipedia articles about Longest common subsequence problem, Suffix tree, Substring, List of algorithms and Suffix automaton. Whereas reading the article about Longest common substring problem people most often go to Wikipedia articles on Generalized suffix tree, Longest common subsequence problem, Longest palindromic substring, Word RAM and N-gram.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 12 August 2025

On 12 August 2025 in multilingual Wikipedia, Internet users most often read articles on the following topics: Cristiano Ronaldo, Wednesday, Georgina Rodríguez, ChatGPT, Weapons, Jenna Ortega, deaths in 2025, Taylor Swift, Miguel Uribe Turbay, 2025–26 UEFA Champions League.

In English Wikipedia the most popular articles on that day were: Weapons (2025 film), Danielle Spencer (American actress), Cristiano Ronaldo, Deaths in 2025, Taylor Swift, Wednesday (TV series), Superman (2025 film), Georgina Rodríguez, Coolie (2025 film), The Fantastic Four: First Steps.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information