Kanav-Arora / DSA-Guide

Building Ultimate Data Structure and Algorithms in C++ Solution Repository. Solution to various DSA problems including problem from Leetcode, Codechef, GFG, Coding Ninjas.

DSA-Cpp

Contributors are invited to improve the content, add new problems to it.

Arrays

• Array

• Character Arrays

  2D Matrix Multiplication

• 2D Input

• 2D Matrix Multiplication

• 2D Matrix Search

Questions

• 2D Input
• 2D Input 1
• Continuous Subarray Sum Multiple K
• Find Pivot Element
• Frequency of Each Element in Sorted Array
• Remove Duplicates from Sorted Array
• Sudoku Solver
• Longest Arithmetic Array
• Max Till i
• Minimum Element
• Record Breaking
• Reverse an Array
• Rotation Game
• Spiral Traversal 2D
• Sum of Subarrays

Questions by Top MNCS's

• Sorting Array Algorithm

• Sorting Array Algorithm

• Circular Max Sum Subarray

• First Repeating Element

• Matrix Transpose

• Maximum Subarray Sum

• Pair Sum Problem

• Print Subarrays

• Smallest Positive Missing Number

• Subarray with Given Sum

  Sorting Array Algorithm

• Question Statement

• Solution

Searching

• Linear Search

Sorting

Decreasing

• Bubble Sort
• Insertion Sort
• Selection Sort

Questions

• Count Inversion

Other Sorting Algorithms

• Bubble Sort
• Count Sort
• DNF Sort
• Insertion Sort
• Merge Sort
• Quick Sort
• Selection Sort
• Wave Sort

Backtracking

• Letter Combination
• N Queen Problem
• Rat in a Maze
• Sudoku Solver

Binary Search

• Binary Search
• Lower Bound
• Upper Bound
• Using STL

Questions

• 2 Power K

• Bitonic Array

• Count of Element in a Sorted Array

• Index of First 1 Infinite

• Min Diff Element

• Number of Times Sorted Array Rotated

• Painters Partition Problem

• Search in 2D

• Search in Infinite Array

• Searching in Nearly Sorted Array

• Book Allocation Problem

• Find Peak

• First and Last Occurence

• Search on Reverse Sorted Array

  Element Search in Rotated Sorted Array

• README.md

• Code

Binary Tree

• Tree.cpp

Form Binary Tree

• PostInOrder.cpp
• PreInOrder.cpp

Questions

• BT Tilt.cpp

• Balanced Height BT.cpp

• Boundary Traversal.cpp

• Check Sum Tree.cpp

• Clone BT with Random Pointer.cpp

• Compare Two Binary Tress.cpp

• Count Sum Nodes.cpp

• Diameter of BT.cpp

• IsSymmetry.cpp

• K Sum Paths.cpp

• Kth Ancestor.cpp

• Lowest Common ancestor.cpp

• Lowest Common ancestor II.cpp

• Max Height.cpp

• Max Path Sum.cpp

• Max Sum Path.cpp

• Max Sum of Non Adjacent.cpp

• Nodes at Distance K.cpp

• Populating Right Next.cpp

• Shortest Distance Bw Two Nodes.cpp

• Sum Replacement.cpp

  Flatten A Binary Tree to Linked List

• Flatten A Binary Tree.cpp

• Flatten A Binary Tree 2.cpp

  Longest ZigZag Path in a Binary Tree

• README.md

• Code.cpp

  Maximum Width of Binary Tree

• README.md

• Code.cpp

  Burn Tree

• Burn Tree.cpp

Traversals of Binary Tree

• Bottom View BT.cpp

• Left View BT.cpp

• Morris Traversal.cpp

• Right View BT.cpp

• Top View BT.cpp

• Vertical Traversal.cpp

• Zig Zag Traversal.cpp

• Traversal.cpp

  Level Order Traversal

• Bottom to Top.cpp

• Top to Bottom.cpp