Problem 2523. longest common substring : Skipped character version

Created by rifat

Solve Later

Two strings are given. Find the longest common substring between them. The substring characters need not be adjacent. They, however, must appear in same order in both input strings.

Example:

str1 = 'abcdefghi';
str2 = 'zazbzczd';

output = 'abcd'

Solve

Solution Stats

Last solution submitted on Sep 27, 2019

Last 200 Solutions

Problem Comments

4 Comments

4 Comments

Show 1 older comment

Michael Ryan on 20 Aug 2014

Shouldn't there be two spaces between example and a in y_correct in test 4?

rifat on 20 Aug 2014

right.. corrected. Thanks :)

Alfonso Nieto-Castanon on 29 Sep 2014

perhaps add another test to avoid non-general solutions? (e.g. str1='abaa' str2='aaab' should return 'aaa')

James on 1 Nov 2017

For test 5:

str1 = 'a string with many characters';
str2 = 'zzz zzz zzz zzz zzz';

Why wouldn't the correct answer be four spaces instead of just one?

Solution Comments

Solution 1440101

1 Comment

1 Comment

bainhome on 19 Jul 2018

Using regexp as outer function's delimiter...This is a hell of reverse thinking case! my hat is off, Bravo!

Problem Recent Solvers14

Problem Tags

substring matching

Problem 2523. longest common substring : Skipped character version

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers14

Suggested Problems

More from this Author45

Problem Tags

Problem 2523. longest common substring : Skipped character version

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers14

Suggested Problems

More from this Author45

Problem Tags

Players