729. My Calendar I
You are implementing a program to use as your calendar. We can add a new event if adding the event […]
2416. Sum of Prefix Scores of Strings
You are given an array words of size n consisting of non-empty strings. We define the score of a string word as the number of strings words[i] such that word is a prefix of words[i]. For example, if words =
Palindrome Linked List
Given a singly linked list of integers. The task is to check if the given linked list is palindrome or
3043. Find the Length of the Longest Common Prefix
You are given two arrays with positive integers arr1 and arr2. A prefix of a positive integer is an integer formed by one or more of its
Smallest Window In A String Containing All The Characters Of Another String
Given two strings s and p. Find the smallest window in the string s consisting of all the characters(including duplicates) of the string p. Return “-1”
2707. Extra Characters in a String
You are given a 0-indexed string s and a dictionary of words dictionary. You have to break s into one or more non-overlapping substrings such that each substring is
Missing And Repeating
Given an unsorted array arr of of positive integers. One number ‘A‘ from set {1, 2,….,n} is missing and one number ‘B‘
440. K-th Smallest in Lexicographical Order
Given two integers n and k, return the kth lexicographically smallest integer in the range [1, n]. Example 1: Input: n = 13, k = 2 Output:
Longest Prefix Suffix
Given a string of characters, find the length of the longest proper prefix which is also a proper suffix. NOTE: Prefix
386. Lexicographical Numbers
Given an integer n, return all the numbers in the range [1, n] sorted in lexicographical order. You must write an algorithm that
Clone A Linked List With Next And Random Pointer
You are given a special linked list where each node has a next pointer pointing to its next node. You