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Data Structures

Subdomain Challenge Points Solution
Arrays Arrays - DS 10 Solution.java
Arrays 2D Array - DS 15 Solution.java
Arrays Dynamic Array 15 Solution.java
Arrays Left Rotation 20 Solution.java
Arrays Sparse Arrays 25 Solution.java
Arrays Algorithmic Crush 60 Solution.java
Linked List Print the Elements of a Linked List 5 Solution.java
Linked List Insert a node at the head of a linked list 5 Solution.java
Linked List Insert a Node at the Tail of a Linked List 5 Solution.java
Linked List Insert a node at a specific position in a linked list 5 Solution.java
Linked List Delete a Node 5 Solution.java
Linked List Print in Reverse 5 Solution.java
Linked List Reverse a linked list 5 Solution.java
Linked List Compare two linked lists 5 Solution.java
Linked List Merge two sorted linked lists 5 Solution.java
Linked List Get Node Value 5 Solution.java
Linked List Delete duplicate-value nodes from a sorted linked list 5 Solution.java
Linked List Cycle Detection 5 Solution.java
Linked List Find Merge Point of Two Lists 5 Solution.java
Linked List Inserting a Node Into a Sorted Doubly Linked List 5 Solution.java
Linked List Reverse a doubly linked list 5 Solution.java
Trees Tree: Preorder Traversal 10 Solution.java
Trees Tree: Postorder Traversal 10 Solution.java
Trees Tree: Inorder Traversal 10 Solution.java
Trees Tree: Height of a Binary Tree 10 Solution.java
Trees Tree: Level Order Traversal 20 Solution.java
Trees Tree: Top View 20 Solution.java
Trees Tree: Huffman Decoding 20 Solution.java
Trees Binary Search Tree: Insertion 20 Solution.java
Trees Binary Search Tree: Lowest Common Ancestor 30 Solution.java
Trees Is This a Binary Search Tree? 30 Solution.java
Stacks Maximum Element 20 Solution.java
Stacks Balanced Brackets 25 Solution.java
Stacks Equal Stacks 25 Solution.java
Stacks Game of stacks 30 Solution.java
Stacks Largest Rectangle 50 Solution.java
Stacks Simple Text Editor 65 Solution.java
Stacks Poisonous Plants 70 Solution.java
Stacks AND xor OR 70 Solution.java
Stacks Waiter 75 Solution.java
Tries Contacts 40 Solution.java
Queues Queue using Two Stacks 30 Solution.java
Heaps Find the Running Median 50 Solution.java

Algorithms

Subdomain Challenge Points Solution
Warmup Solve Me First 1 Solution.java
Warmup Simple Array Sum 10 Solution.java
Warmup Compare the Triplets 10 Solution.java
Warmup A Very Big Sum 10 Solution.java
Warmup Diagonal Difference 10 Solution.java
Warmup Plus Minus 10 Solution.java
Warmup Staircase 10 Solution.java
Warmup Mini-Max Sum 10 Solution.java
Warmup Birthday Cake Candles 10 Solution.java
Warmup Time Conversion 15 Solution.java
Strings Super Reduced String 10 Solution.java
Strings CamelCase 15 Solution.java
Strings Strong Password 15 Solution.java
Strings Two Characters 20 Solution.java
Strings Caesar Cipher 15 Solution.java
Strings Mars Exploration 15 Solution.java
Strings HackerRank in a String! 20 Solution.java
Strings Pangrams 20 Solution.java
Strings Weighted Uniform Strings 20 Solution.java
Strings Separate the Numbers 20 Solution.java
Strings Funny String 25 Solution.java
Strings Gemstones 20 Solution.java
Strings Alternating Characters 20 Solution.java
Strings Beautiful Binary String 20 Solution.java
Strings The Love-letter Mystery 15 Solution.java
Strings Determining DNA Health 50 Solution.java
Strings Palindrome Index 25 Solution.java
Strings Anagram 25 Solution.java
Strings Making Anagrams 30 Solution.java
Strings Game of Thrones - I 30 Solution.java
Strings Two Strings 25 Solution.java
Strings String Construction 25 Solution.java
Strings Sherlock and the Valid String 35 Solution.java
Strings Highest Value Palindrome 30 Solution.java
Strings Maximum Palindromes 40 Solution.java
Strings Sherlock and Anagrams 50 Solution.java
Strings Common Child 60 Solution.java
Strings Bear and Steady Gene 50 Solution.java

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