It contains the solutions of Leetcode April Challenge 2021

Link to the contest : Click:triangular_flag_on_post:

Problem Name	Click to open the Problem
Largest Unique Number
Palindrome Linked List
Ones and Zeroes
Longest Valid Parentheses
Design Circular Queue
Global and Local Inversions
Minimum Operations to Make Array Equal
Determine if String Halves Are Alike
Inorder Successor in BST
Letter Combinations of a Phone Number
Verifying an Alien Dictionary
Longest Increasing Path in a Matrix
Deepest Leaves Sum
Beautiful Arrangement II
Flatten Nested List Iterator
Partition List
Minimum Swaps to Group All 1's Together
Fibonacci Number
Remove All Adjacent Duplicates in String II
Number of Submatrices That Sum to Target
Remove Nth Node From End of List
Combination Sum IV
N-ary Tree Preorder Traversal
Triangle
Missing Number In Arithmetic Progression
Brick Wall
Count Binary Substrings
Count Binary Substrings
Rotate Image
Furthest Building You Can Reach
Power of Three
Unique Paths II
Meeting Scheduler
Find First and Last Position of Element in Sorted Array
Powerful Integers