Strings

3.2k+ posts

Check if a string is substring of another

Last Updated: 16 October 2024

Given two strings txt and pat, the task is to find if pat is a substring of txt. If yes, return the index of the first occurrence, else retu ...read more

Strings

DSA

Comparing two strings in C++

Last Updated: 23 June 2022

Given two strings, how to check if the two strings are equal or not.Examples:Input : ABCD, XYZOutput : ABCD is not equal to XYZ XYZ ...read more

Strings

cpp-string

DSA

Check if String Contains Substring in Python

Last Updated: 20 June 2024

This article will cover how to check if a Python string contains another string or a substring in Python. Given two strings, check whether a ...read more

Strings

Python

Python string-programs

DSA

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Convert Infix To Prefix Notation

Last Updated: 03 February 2025

Given an infix expression consisting of operators (+, -, *, /, ^) and operands (lowercase characters), the task is to convert it to a prefix...read more

Strings

Stack

expression-evaluation

DSA

Sort string of characters

Last Updated: 02 May 2025

Given a string of lowercase characters from 'a' - 'z'. We need to write a program to print the characters of this string in sorted order.Exa ...read more

Sort a String in Java (2 different ways)

Last Updated: 18 March 2024

The string class doesn't have any method that directly sorts a string, but we can sort a string by applying other methods one after another. ...read more

Print all subsequences of a string

Last Updated: 18 October 2024

Given a string, we have to find out all its subsequences of it. A String is said to be a subsequence of another String, if it can be obtaine...read more

All substrings of a given String

Last Updated: 14 February 2025

Given a string s, containing lowercase alphabetical characters. The task is to print all non-empty substrings of the given string.Examples : ...read more

Strings

strings

DSA

Basic Coding Problems

Vigenère Cipher

Last Updated: 18 July 2024

Vigenere Cipher is a method of encrypting alphabetic text. It uses a simple form of polyalphabetic substitution. A polyalphabetic cipher is ...read more

Strings

Technical Scripter

DSA

How to split a string in C/C++, Python and Java?

Last Updated: 11 January 2025

Splitting a string by some delimiter is a very common task. For example, we have a comma-separated list of items from a file and we want ind ...read more

Longest Common Substring

Last Updated: 30 September 2024

Given two strings 's1' and 's2', find the length of the longest common substring.Example:Input: s1 = "GeeksforGeeks", s2 = "GeeksQuiz"Output ...read more

Longest Palindromic Subsequence (LPS)

Last Updated: 10 March 2025

Given a string s, find the length of the Longest Palindromic Subsequence in it. Note: The Longest Palindromic Subsequence (LPS) is the maxim...read more

First non-repeating character of given string

Last Updated: 07 April 2025

Given a string s of lowercase English letters, the task is to find the first non-repeating character. If there is no such character, return ...read more

Print all the duplicate characters in a string

Last Updated: 30 July 2024

Given a string S, the task is to print all the duplicate characters with their occurrences in the given string.Example:Input: S = "geeksforg ...read more

Strings

String Duplicates

DSA

Remove duplicates from a string

Last Updated: 11 September 2024

Given a string s which may contain lowercase and uppercase characters. The task is to remove all duplicate characters from the string and fi ...read more

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