Algorithm

All algorithms and data structures by Java, JavaScript, Python.

Java

Data structure

Arrays and Strings

• Caesar cipher
• Check permutation
• Check unique char
• Compress string
• Cyclic rotation
• Equilibrium index
• Find missing element
• Odd occurence in array
• Reverse string
• Rotate matrix
• Rotate string
• Second max
• Tape equilibrium
• URLify
• Zero matrix

HashTables

• Camouflage
• Distinct
• Missing integer

LinkedLists

• Basic linked list
• Delete duplications
• Linked list by recursive

Stacks and Queues

• Brackets
• Fish the eat
• Nest
• Queue
• Queue test
• Stack
• Stack test

Math

• Binary gap
• Chocolates by numbers
• Count cars
• Count div
• Count factors
• Equi leader
• Find min prime factor
• Frog jump
• Is prime number
• Min max holiday
• Min perimeter rectangle
• Multiples of 3 and 5
• Perm check
• Sieve of eratosthenes

Recursive

• Combination
• Combination test
• Dice game
• Factorial
• Fibonacci
• Fibonacci using memo
• Permutation
• Permutation test

Sorting and Searching

• Binary search
• Bubble sort
• Find maximum repeating num
• Insertion sort
• Is duplicate
• Max product of three
• Mock test
• Quick sort
• Selection sort
• Shell sort
• Triangle
• Unique integer

JavaScript

Data structure

Arrays and Strings

• 2D Array
• Anagrams
• Array manipulation
• Atoi
• Atoi with regex
• Binary strings without consecutive
• Caesar cipher
• Compare the triplets
• Contains duplicates
• Convert upper to space
• Convert 0 to many
• Count and say sequence
• Count and say sequence(Recursive version)
• Counting valleys
• Diagonal difference
• Electronics shop
• Element Equal To Index
• Equalize array
• Find a position where the sum of the left and right is equal
• Find duplicate element
• Find main element
• Find missing element
• Find two indexes
• First Unique Character in a String
• Intersection of Two Arrays
• Is cipherable
• Largest sum
• Left rotation
• Longest bitonic subsequence
• Longest common prefix
• Longest substring length
• Max gap
• Maximum subarray
• Maximum subarray in circular array
• Max profit
• Max multiplier
• Merge interval
• Merge sorted arrays
• Merge sorted arrays(no-tricky)
• Mini max sum
• Move zeroes
• Multiply others
• Num of ids
• Plus one
• Racer
• Ransom note
• Remove Duplicates
• Reverse Integer
• Reverse string
• Reverse string in each word
• Right rotation
• Rotate image
• Simple array sum
• Singe number
• Sock merchant
• Sort 0 1 2
• Sort two arrays
• Sparse array
• strStr
• Sudoku
• Two sum
• Valid Anagram
• Valid Palindrome

HashTable

• Distinct

LinkedList

• Add two numbers
• Delete node
• Delete node in a linked list
• Insert node at head
• Insert node at position
• Remove Nth from end
• Reverse linked list
• Singly linked list

Tree

• Maximum Depth Of Binary Tree
• Validate binary search tree

Implementation

• Apple and orange
• Between two sets
• Dynamic array
• Find length of common prefix
• Kangaroo
• Lost clothes
• Min stack
• Plus minus
• Shuffle an array
• Staircase

Math

• A very big sum
• Cat and mouse
• Find hidden numbe
• Find the point
• Fizz Buzz
• Hurdle race
• Jumping on clouds
• Power of three
• Repeated string
• Strange grid again

Recursive

• Brackets
• Climbing Stairs
• Combination
• Factorial
• Fibonacci
• Palindrome
• Permutation
• Subset sum

Sorting and Searching

• Binary search
• Binary search recursive
• Binary sort
• Bubble sort
• Bubble sort with swap count
• Find Nth largest element in an array
• First bad version
• First last position
• Mark and toys
• Merge sorted array
• Move zeros
• Position Larger than next each other
• Radix sort
• Shuffle array

Python

Data Structure

Linked List

• Merge two sorted linked list

Math

• Count char

Recursive

• Count
• Euclidean
• Factorial
• Max
• Recursive Sum

Sort and Search

• Breadth-First Search
• Binary search
• Selection sort
• Quick sort