Algorithms (Java)

• LRU Cache
• Concurrent LRU Cache with ReadWriteLock
• Concurrent LRU Cache with LinkedHashMap
• Heap (PriorityQueue)
• Program to print top N trending hashtags 
• Recursion
• Solve Tower of Hanoi
• program to print combination of numbers for a given sum
• Backtracking
• Program to solve Sudoku
• Sliding window
• Longest unique substring
• Binary Tree
• Validate if Binary Search Tree
• Mirror a Binary Tree
• Lowest Common Ancestor of a given node
• Level Order Traversal of a Binary Tree
• Spiral Order Traversal of a Binary Tree
• Make forest from a Binary Tree by deleting given nodes
• Right View of a Binary Tree
• Left View of a Binary Tree
• Stack
• Print Nearest Greater Number with original number
• Program to reverse a given sentence in java
• Program to add two large numbers that cannot be stored in java numeric data types
• Program to group even numbers and odd numbers of a given set of numbers
• Program to print longest sequence of each numbers
• Program to find next greatest number from digits of a given number
• Program to find shortest distance to particular value in a matrix