Palindromes | Problems on strings
In computer science, the longest palindromic substring or longest symmetric factor problem is the problem of finding a maximum-length contiguous substring of a given string that is also a palindrome. For example, the longest palindromic substring of "bananas" is "anana". The longest palindromic substring is not guaranteed to be unique; for example, in the string "abracadabra", there is no palindromic substring with length greater than three, but there are two palindromic substrings with length three, namely, "aca" and "ada". In some applications it may be necessary to return all maximal palindromic substrings (that is, all substrings that are themselves palindromes and cannot be extended to larger palindromic substrings) rather than returning only one substring or returning the maximum length of a palindromic substring. invented an -time algorithm for listing all the palindromes that appear at the start of a given string of length . However, as observed e.g., by , the same algorithm can also be used to find all maximal palindromic substrings anywhere within the input string, again in time. Therefore, it provides an -time solution to the longest palindromic substring problem. Alternative -time solutions were provided by , and by , who described a solution based on suffix trees. A faster algorithm can be achieved in the word RAM model of computation if the size of the input alphabet is in . In particular, this algorithm runs in time using space. Efficient parallel algorithms are also known for the problem. The longest palindromic substring problem should not be confused with the different problem of finding the longest palindromic subsequence. (Wikipedia).
Python Programming Practice: LeetCode #5 -- Longest Palindromic Substring
This episode of Python Programming Practice shows two approaches to LeetCode #5 -- Longest Palindromic Substring https://leetcode.com/problems/longest-palindromic-substring/ This is a medium difficulty problem. Note that the intent of this series to help viewers think through approaches
From playlist Python Programming Practice
Longest common substring problem suffix array
Related Videos: Suffix array intro: https://www.youtube.com/watch?v=zqKlL3ZpTqs Longest common prefix (LCP) array: https://www.youtube.com/watch?v=53VIWj8ksyI Counting unique substrings: https://www.youtube.com/watch?v=m2lZRmMjebw Longest common substring 1/2: https://www.youtube.com/watch
From playlist Data structures playlist
Longest common substring problem suffix array part 2
Related Videos: Suffix array intro: https://www.youtube.com/watch?v=zqKlL3ZpTqs Longest common prefix (LCP) array: https://www.youtube.com/watch?v=53VIWj8ksyI Counting unique substrings: https://www.youtube.com/watch?v=m2lZRmMjebw Longest common substring 1/2: https://www.youtube.com/watch
From playlist Data structures playlist
Related Videos: Suffix array intro: https://www.youtube.com/watch?v=zqKlL3ZpTqs Longest common prefix (LCP) array: https://www.youtube.com/watch?v=53VIWj8ksyI Counting unique substrings: https://www.youtube.com/watch?v=m2lZRmMjebw Longest common substring 1/2: https://www.youtube.com/watch
From playlist Data structures playlist
Longest Repeated Substring suffix array
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From playlist Data structures playlist
Lecture 7 - Suffix Arrays and Assembly
This is Lecture 7 of the CSE549 (Computational Biology) course taught by Professor Steven Skiena [http://www.cs.sunysb.edu/~skiena/] at Stony Brook University in 2010. The lecture slides are available at: http://www.algorithm.cs.sunysb.edu/computationalbiology/pdf/lecture7.pdf More infor
From playlist CSE549 - Computational Biology - 2010 SBU
Data Science with Mathematica -- Dynamic Programming
In this session of my Data Science with Mathematica track I provide an introduction to Dynamic Programming for the Data Scientist. DP is a very important, practical, flexible, and code-efficient way to solve problems in combinatorial optimization. Its applicability covers many fields: oper
From playlist Data Science with Mathematica
Longest Common Prefix (LCP) array
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From playlist Data structures playlist
Lecture 6 - Suffix Trees in Action
This is Lecture 6 of the CSE549 (Computational Biology) course taught by Professor Steven Skiena [http://www.cs.sunysb.edu/~skiena/] at Stony Brook University in 2010. The lecture slides are available at: http://www.algorithm.cs.sunysb.edu/computationalbiology/pdf/lecture6.pdf More infor
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Suffix array finding unique substrings
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From playlist Data structures playlist
Lecture 12 | Programming Methodology (Stanford)
Lecture by Professor Mehran Sahami for the Stanford Computer Science Department (CS106A). Professor Sahami lectures on Enumeration. CS106A is an Introduction to the engineering of computer applications emphasizing modern software engineering principles: object-oriented design, decomposi
From playlist Course | Programming Methodology
Longest Common Substring | Dynamic Programming | Data Structures And Algorithms | Simplilearn
This video on longest common substring will acquaint you with a clear understanding of the longest common substring and solution implementation. In this Data Structure and Algorithm Tutorial, you will understand a different aspect to dynamic programming and how to utilize it to find longes
Java String Programs | String Examples in Java | Java Certification Training | Edureka
🔥 Java Certification Training: https://www.edureka.co/java-j2ee-training-course This Edureka video on Java String Programs will talk about top 10 important programs in java strings with examples. Below programs are covered in this video: Reverse words in a String String Concatenation Frequ
From playlist Java Tutorial For Beginners | Edureka
Java String Programs For Beginners | Java String Examples | Java Training | Edureka | Java Rewind -1
🔥Java Certification Training: https://www.edureka.co/java-j2ee-training-course This Edureka video on Java String Programs will talk about top 10 important programs in java strings with examples. 🔴Subscribe to our channel to get video updates. Hit the subscribe button above: https://goo.g
From playlist Edureka Live Classes 2020
STRINGS and LANGUAGES - Formal Languages and Automata
We talk all about strings, alphabets, and languages. We cover length, concatenation, substrings, and reversals. We also talk about palindromes! 0:00 - [Intro] 2:54 - [Length of a String] 4:40 - [Reverse of a String] 7:48 - [Substrings] 10:06 - [Concatenation] 13:04 - [Summative Exercise]
From playlist Formal Languages and Automata
Using a set of points determine if the figure is a parallelogram using the midpoint formula
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From playlist Quadrilaterals on a Coordinate Plane
Srecko Brlek: Palindromes patterns
Abstract: The study of palindromes and their generalizations in a word has gained a lot of interest in the last 20 years, motivated by applications in physics, biology, discrete geometry, to name only a few. Using Sebastien Ferenczi as an example, we illustrate the computation of its palin
From playlist Dynamical Systems and Ordinary Differential Equations
We look at the longest bridges in the world by construction type. For more by The B1M subscribe now - http://ow.ly/GxW7y Read the full story on this video, including images and useful links, here: http://www.theb1m.com/video/the-worlds-longest-bridges The Golden Gate - Building an Impos
From playlist The World's...
This video is part of the MegaFavNumbers project. Maths YouTubers have come together to make videos about their favourite numbers bigger than one million, which we are calling #MegaFavNumbers. This is my contribution to the project. It is about the number 1030301, which has some amazing
From playlist MegaFavNumbers