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Check if the given string is linear or not

Last Updated: 11 May 2021

Given string str, the task is to check whether the given string is linear or not. If it is linear then print "Yes" else print "No". Let the string be "abcdefghij". It can...read more

String hashing using Polynomial rolling hash function

Last Updated: 28 April 2025

Given a string str of length n, your task is to find its hash value using polynomial rolling hash function.Note: If two strings are equal, their hash values should also be...read more

Minimum bit flips such that every K consecutive bits contain at least one set bit

Last Updated: 15 July 2025

Given a binary string S, and an integer K, the task is to find the minimum number of flips required such that every substring of length K contains at least one '1'.Example...read more

How to create a custom String class in C++ with basic functionalities

Last Updated: 15 July 2025

In this article, we will create our custom string class which will have the same functionality as the existing string class.The string class has the following basic functi...read more

Generate a string of size N whose each substring of size M has exactly K distinct characters

Last Updated: 31 October 2023

Given 3 positive integers N, M, and K. the task is to construct a string of length N consisting of lowercase letters such that each substring of length M having exactly K ...read more

DSA

C-String-Question

Program to find the XOR of ASCII values of characters in a string

Last Updated: 12 July 2025

Given a string str, the task is to find the XOR of ASCII values of characters in the string.Examples:Input: str = "Geeks"Output: 95ASCII value of G = 71ASCII value of e = ...read more

Count the nodes of the tree which make a pangram when concatenated with the sub-tree nodes

Last Updated: 11 July 2025

Given a tree, and the weights (in the form of strings) of all the nodes, the task is to count the nodes whose weighted string when concatenated with the strings of the sub...read more

String matching with * (that matches with any) in any of the two strings

Last Updated: 29 November 2023

You are given two strings A and B. Strings also contains special character * . you can replace * with any alphabetic character. Finally, you have to tell whether it is pos...read more

Number of unique permutations starting with 1 of a Binary String

Last Updated: 06 April 2023

Given a binary string composed of 0's and 1's. The task is to find the number of unique permutation of the string which starts with 1.Note: Since the answer can be very la...read more

C Program to Find the Length of a String

Last Updated: 11 July 2025

The length of a string is the number of characters in it without including the null character (‘\0’). In this article, we will learn how to find the length of a string in ...read more

C Language

school-programming

C-String-Question

Generating all possible Subsequences using Recursion including the empty one.

Last Updated: 11 July 2025

Given an array arr[]. The task is to find all the possible subsequences of the given array using recursion.Examples:Input: arr[] = [1, 2, 3]Output : [3], [2], [2, 3], [1],...read more

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Technical Scripter 2018

Last Updated: 11 July 2025

Given a number N, the task is to check whether it is fascinating or not.Fascinating Number: When a number( 3 digits or more ) is multiplied by 2 and 3, and when both these...read more

Check if the characters in a string form a Palindrome in O(1) extra space

Last Updated: 22 December 2023

Given string str. The string may contain lower-case letters, special characters, digits, or even white spaces. The task is to check whether only the letters present in the...read more

Print the given 3 string after modifying and concatenating

Last Updated: 13 March 2023

Given three strings(without spaces). The task is to print the new string after modifying the three given string as follows:Replace all the vowels present in the first stri...read more

DSA

C-String-Question

cpp-strings-library

Longest common anagram subsequence from N strings

Last Updated: 11 July 2025

Given N strings. Find the longest possible subsequence from each of these N strings such that they are anagram to each other. The task is to print the lexicographically la...read more

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