C++

Arrays

• Counting Inversions
• Dutch Flag Algorithm
• Left Rotation
• Max Subarray Sum
• Shift Negatives
• Boyer–Moore Voting Algorithm
• Reverse Array
• Sorted-Rotated Search Array
• Fractional Knapsack
• Quick Selection
• Remove Duplicates
• Leaders In The Array
• Elements appear thrice In The Array
• Maximum Difference
• Occurrence of one in sorted array
• Segregate 0s and 1s
• Search insert position
• Matrix Multiplication
• Smallest Sum Possible
• Smallest Possible Sum
• Index of Smallest element of Array
• Move Zeros to End of The Array
• Kadane's Algorithm
• All unique triplet that sum up to given value
• Merge two sorted array without using extraspace
• All unique triplet that sum up to given value
• Next permutation
• Maximum Minimum Average of numbers
• Sparse Matrix

Dynamic-Programming

• Longest Common Subsequence
• Longest Common Substring
• 0/1-knapsack
• Matrix chain Multiplication
• Edit Distance
• Fibonacci

Graphs

• Bellman Ford Algorithm
• kruskal Algorithm
• Breadth First Search
• Topological sort
• Dfs traversal with stack
• Dfs traversal with recursion
• Connected Components
• Dijkstra's Algorithm
• Cycle Detection
• Prim's Algorithm
• Floyd Warshall
• Detecting Cycle in Directed graph using three colors

Multiplication

• Karatsuba

Linked Lists

• All possible insertions

• Singly linked lists

• doubley linked lists

• Circular linked lists

• Removing Elements of given value

• Reversing a linked lists

• Merging two sorted linked lists

• Reorder List

• Detecting cycle in a singly linked list

• Find Merge Point of two singly linked list

• Segregate Even Odd Nodes of linked list

• Remove Duplicate in Sorted linked list

• Reverse the linked list using stack

  Searching

• Linear Search

• Jump Search

• Binary Search

• Finding squareroot using Binary search

• KMP String Searching

• Ternary Search

• Interpolation Search

• Exponential Search

• Linear search in 2D array

Stacks

• Balancing Parenthesis
• Reversing Stack
• Stack using Array
• Infix to postfix expression conversion
• Stock Span Problem using Stacks
• Prefix to Postfix expression conversion

Sorting

• Bubble Sort
• Insertion Sort
• Quicksort
• Selection Sort
• 3 way Quick Sort
• Bucket Sort
• Comb Sort
• Counting Sort
• heap Sort
• Radix Sort
• Shell Sort
• Binary Insertion Sort
• Merge Sort
• Wave Sort
• Cycle Sort

Strings

• Rabin-Karp pattern search algo
• All subsequence of a string (Recursion)
• String reversal
• String tokanisation
• Anagram check
• Remove occurrences from string
• Delete alternate characters in a string
• Print first letter of every word
• Display longest name in a string array
• Boyer Moore pattern search
• Longest common prefix
• First unique character in the string
• Sliding Window to match target string

Trees

• Creating Binary Tree
• Counting and finding sum of all the nodes in BST
• Level Order Traversal
• Depth first Traversal
• Binary Search Tree
• In order morris traversal
• In order Predecessor and Successor
• Avl Tree
• Min Heap
• Finding the height of a given tree
• Finding the elements of a tree visible from top view
• Binary Tree Implementation
• Iterative Segment Tree
• Print all nodes at level k
• Sum of right leaves

Trie

• Trie for searching

Maths

• Kaprekar Number
• Prime Number
• Prime Sieve
• Fibonacci Series
• Binomial Coefficient
• Armstrong Number
• Palindrome
• Reverse digit of a number
• Missing number
• Factorial of a number
• Prime-number
• Totient-function
• Even number of digits
• Power of two
• Small numbers
• Segmented Sieve
• Binary Power

Recursion

• Tower of Hanoi
• Factorial
• Permutation
• GCD/HCF of two numbers
• Sum of all elements of an array
• Decimal number to Binary conversion
• Sum of digits of a decimal integer
• Binary search using recursion
• First uppercase letter in a string
• Reverse a string using recursion
• Find string length using recursion
• Sum of n natural numbers
• Minimum and maximum element in array
• Prime Check
• Array sorted or not
• Product of two numbers
• Product of digits in a number
• Linear search using recursion
• Reverse a number using recursion

Number System

• Binary Addition
• Binary to Decimal
• Decimal To Binary
• Decimal To Hexa-Decimal
• Hexa-Decimal To Decimal
• Decimal To Octal
• Octal To Decimal

Backtracking

• N-Queens Problem