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HTML entity parser is the parser that takes HTML code as input and replace all the entities of the special characters by the characters itself. The special characters and their entities for HTML are: Given the input text string to the HTML parser, you have to implement the entity parser. Return the text after replacing…
Given the array queries of positive integers between 1 and m, you have to process all queries[i] (from i=0 to i=queries.length-1) according to the following rules: Return an array containing the result for the given queries. Example 1: Input: queries = [3,1,2,1], m = 5Output: [2,1,2,1]Explanation: The queries are processed as follow:For i=0: queries[i]=3, P=[1,2,3,4,5],…
Merge Sorted Array solution in java You are given two integer arrays nums1 and nums2, sorted in non-decreasing order, and two integers m and n, representing the number of elements in nums1 and nums2 respectively. Merge nums1 and nums2 into a single array sorted in non-decreasing order. The final sorted array should not be returned…
Two Sum Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you may not use the same element twice. You can return the answer in any order. This problem is…
Maximum Subarray Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum. A subarray is a contiguous part of an array. The problem is taken from the below mentioned link:- Leetcode Problem Approach:- In most of the case this kind of problems…
Contains Duplicate Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct. The above problem is taken from the below mentioned link:- Leetcode Problem Approach:- Use of HashSet data structure will solve the problem. Here Set is chosen as it…
Convert Binary Number in a Linked List to Integer Given head which is a reference node to a singly-linked list. The value of each node in the linked list is either 0 or 1. The linked list holds the binary representation of a number. Return the decimal value of the number in the linked list. The problem is…
Queries on a Permutation With Key Given the array queries of positive integers between 1 and m, you have to process all queries[i] (from i=0 to i=queries.length-1) according to the following rules: In the beginning, you have the permutation P=[1,2,3,…,m]. For the current i, find the position of queries[i] in the permutation P (indexing from…
Concatenation of Array Given an integer array nums of length n, you want to create an array ans of length 2n where ans[i] == nums[i] and ans[i + n] == nums[i] for 0 <= i < n (0-indexed). Specifically, ans is the concatenation of two nums arrays. Return the array ans. The problem is taken…
Problem Statement of leetcode 1920:- Given a zero-based permutation nums (0-indexed), build an array ans of the same length where ans[i] = nums[nums[i]] for each 0 <= i < nums.length and return it. A zero-based permutation nums is an array of distinct integers from 0 to nums.length – 1 (inclusive). The problem is taken from…