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Flattening a Linked List

Last Updated: 05 March 2023

Given a linked list where every node represents a linked list and contains two pointers of its type:Pointer to next node in the main list (we call it 'right' pointer in th ...read more

Boundary Traversal of binary tree

Last Updated: 22 August 2023

Given a binary tree, print boundary nodes of the binary tree Anti-Clockwise starting from the root.The boundary includesleft boundary (nodes on left excluding leaf nodes)l...read more

KMP Algorithm for Pattern Searching

Last Updated: 04 May 2023

Given a text txt[0 . . . N-1] and a pattern pat[0 . . . M-1], write a function search(char pat[], char txt[]) that prints all occurrences of pat[] in txt[]. You may assume...read more

Naive algorithm for Pattern Searching

Last Updated: 24 February 2023

Naive Algorithm:i) It is the simplest method which uses brute force approach.ii) It is a straight forward approach of solving the problem.iii) It compares first character ...read more

Next Greater Element (NGE) for every element in given Array

Last Updated: 29 September 2023

Given an array, print the Next Greater Element (NGE) for every element.The Next greater Element for an element x is the first greater element on the right side of x in the...read more

Reverse words in a given string

Last Updated: 13 September 2023

Given a string, the task is to reverse the order of the words in the given string.Examples:Input: s = "geeks quiz practice code"Output: s = "code practice quiz geeks"Input...read more

Last Updated: 25 April 2023

Write a program to print all the LEADERS in the array. An element is a leader if it is greater than all the elements to its right side. And the rightmost element is always ...read more

Level Order Traversal (Breadth First Search or BFS) of Binary Tree

Last Updated: 05 June 2023

Level Order Traversal technique is defined as a method to traverse a Tree such that all nodes present in the same level are traversed completely before traversing the next...read more

Find first non-repeating character of given String

Last Updated: 22 May 2023

Given a string S consisting of lowercase Latin Letters, the task is to find the first non-repeating character in S.Examples:Input: "geeksforgeeks"Output: fExplanation: As ...read more

Find the middle of a given linked list

Last Updated: 28 March 2023

Auxiliary Given a singly linked list, find the middle of the linked list. For example, if the given linked list is 1-2-3-4-5 then the output should be 3.If there are even ...read more

Python-Data-Structures

DSA

Find the Missing Number

Last Updated: 25 April 2023

Given an array arr[] of size N-1 with integers in the range of [1, N], the task is to find the missing number from the first N integers.Note: There are no duplicates in th ...read more

limited-range-elements

DSA

Largest Sum Contiguous Subarray (Kadane's Algorithm)

Last Updated: 22 August 2023

Given an array arr[] of size N. The task is to find the sum of the contiguous subarray within a arr[] with the largest sum.Recommended PracticeSave Your LifeTry It!The ide...read more

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