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Solutions to the most commonly asked interview problems for aspiring software developers. Questions are picked from a mix of platforms like Leetcode, Hackerrank, GFG etc.

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327 Commits
0-1 Knapsack - Memoization.cpp
0-1 Knapsack - Memoization.cpp
 
 
0-1 Knapsack - TopDown.cpp
0-1 Knapsack - TopDown.cpp
 
 
2 sum - BST.cpp
2 sum - BST.cpp
 
 
2 sum using Hash Table.cpp
2 sum using Hash Table.cpp
 
 
2-Strings.cpp
2-Strings.cpp
 
 
2_Sum_Target.cpp
2_Sum_Target.cpp
 
 
2_sum.cpp
2_sum.cpp
 
 
3Sum Closest.cpp
3Sum Closest.cpp
 
 
Add Digits.cpp
Add Digits.cpp
 
 
Add Two Numbers.cpp
Add Two Numbers.cpp
 
 
All Numbers Disappeared in an Array.cpp
All Numbers Disappeared in an Array.cpp
 
 
Anagrams.cpp
Anagrams.cpp
 
 
Apples & Oranges.cpp
Apples & Oranges.cpp
 
 
Area Using Abstract Class.java
Area Using Abstract Class.java
 
 
Array Manipulation.cpp
Array Manipulation.cpp
 
 
Array Queries.cpp
Array Queries.cpp
 
 
BST_Insertion.cpp
BST_Insertion.cpp
 
 
BST_Mode.cpp
BST_Mode.cpp
 
 
Balanced Tree.cpp
Balanced Tree.cpp
 
 
Bank Interest Rates Using Interface.java
Bank Interest Rates Using Interface.java
 
 
Best Time to Buy and Sell Stock.cpp
Best Time to Buy and Sell Stock.cpp
 
 
Binary Search : PeakElement.cpp
Binary Search : PeakElement.cpp
 
 
Binary Search Tree Implementation.c
Binary Search Tree Implementation.c
 
 
Binary Search Tree from Preorder Traversal.cpp
Binary Search Tree from Preorder Traversal.cpp
 
 
Binary Search.cpp
Binary Search.cpp
 
 
Binary Tree Tilt.cpp
Binary Tree Tilt.cpp
 
 
Binary Tree To DLL.cpp
Binary Tree To DLL.cpp
 
 
Binary Tree Zigzag Level Order Traversal.cpp
Binary Tree Zigzag Level Order Traversal.cpp
 
 
Breadth First Traversal.cpp
Breadth First Traversal.cpp
 
 
Characters By Frequency.cpp
Characters By Frequency.cpp
 
 
Check Capital.cpp
Check Capital.cpp
 
 
Check Completeness of a Binary Tree..cpp
Check Completeness of a Binary Tree..cpp
 
 
Check if the Sentence Is Pangram.cpp
Check if the Sentence Is Pangram.cpp
 
 
CheckBalanced.cpp
CheckBalanced.cpp
 
 
Coin Change - Minimum Coins.cpp
Coin Change - Minimum Coins.cpp
 
 
Coin Change - Total No Of Ways.cpp
Coin Change - Total No Of Ways.cpp
 
 
Compare two linked lists.cpp
Compare two linked lists.cpp
 
 
Construct the Rectangle.cpp
Construct the Rectangle.cpp
 
 
Contains Duplicates II.cpp
Contains Duplicates II.cpp
 
 
Convert Binary Number in a Linked List to Integer.cpp
Convert Binary Number in a Linked List to Integer.cpp
 
 
CostToBuyNcandies.cpp
CostToBuyNcandies.cpp
 
 
Count Negative Numbers in a Sorted Matrix.cpp
Count Negative Numbers in a Sorted Matrix.cpp
 
 
Count leaf nodes in tree.java
Count leaf nodes in tree.java
 
 
Count primes in given range.cpp
Count primes in given range.cpp
 
 
Cousins in Binary Tree.cpp
Cousins in Binary Tree.cpp
 
 
Custom Sort String.cpp
Custom Sort String.cpp
 
 
DFS-Traversal.cpp
DFS-Traversal.cpp
 
 
DP: Shortest Common Supersequence.cpp
DP: Shortest Common Supersequence.cpp
 
 
Decimal To Binary.c
Decimal To Binary.c
 
 
DeleteWithoutHeadPointer.cpp
DeleteWithoutHeadPointer.cpp
 
 
Detect cycle in an undirected graph.cpp
Detect cycle in an undirected graph.cpp
 
 
Determine Whether Matrix Can Be Obtained By Rotation.cpp
Determine Whether Matrix Can Be Obtained By Rotation.cpp
 
 
Diagonal Difference - O(n) .cpp
Diagonal Difference - O(n) .cpp
 
 
Diagonal Difference.cpp
Diagonal Difference.cpp
 
 
Diameter Of Binary Tree .cpp
Diameter Of Binary Tree .cpp
 
 
Diameter Of Binary Tree.cpp
Diameter Of Binary Tree.cpp
 
 
Diameter of Tree - Backtracking.cpp
Diameter of Tree - Backtracking.cpp
 
 
Dijkstra's Algorithm.cpp
Dijkstra's Algorithm.cpp
 
 
Double Linked List Implementation.c
Double Linked List Implementation.c
 
 
Doubling The value.cpp
Doubling The value.cpp
 
 
Facing the sun.cpp
Facing the sun.cpp
 
 
Factorial.cpp
Factorial.cpp
 
 
Fibonacci.cpp
Fibonacci.cpp
 
 
Find All Duplicates in an Array.cpp
Find All Duplicates in an Array.cpp
 
 
Find Bottom Left Tree Value.cpp
Find Bottom Left Tree Value.cpp
 
 
Find Largest Value in Each Tree Row.cpp
Find Largest Value in Each Tree Row.cpp
 
 
Find Pivot Index.cpp
Find Pivot Index.cpp
 
 
Find Smallest Letter Greater Than Target.cpp
Find Smallest Letter Greater Than Target.cpp
 
 
Find the Difference.cpp
Find the Difference.cpp
 
 
Find-k-closest-elements.cpp
Find-k-closest-elements.cpp
 
 
First Negative Number in every Window of Size K.cpp
First Negative Number in every Window of Size K.cpp
 
 
First Repeating number.cpp
First Repeating number.cpp
 
 
First Unique Character.cpp
First Unique Character.cpp
 
 
First negative integer in every window of size k.cpp
First negative integer in every window of size k.cpp
 
 
FizzBuzz.cpp
FizzBuzz.cpp
 
 
Flatten Binary Tree to Linked List.cpp
Flatten Binary Tree to Linked List.cpp
 
 
Flatten Linked List.cpp
Flatten Linked List.cpp
 
 
Floor Of Array.cpp
Floor Of Array.cpp
 
 
Generic Array.cpp
Generic Array.cpp
 
 
Good Weather.cpp
Good Weather.cpp
 
 
Grading Students.cpp
Grading Students.cpp
 
 
Graph BFS.cpp
Graph BFS.cpp
 
 
Greedy_SOLN_jobSequencing.cpp
Greedy_SOLN_jobSequencing.cpp
 
 
Group Anagrams.cpp
Group Anagrams.cpp
 
 
Handling CLI Exceptions.java
Handling CLI Exceptions.java
 
 
Handling Multiple Exceptions.java
Handling Multiple Exceptions.java
 
 
Happy Number.cpp
Happy Number.cpp
 
 
Heap Sort.cpp
Heap Sort.cpp
 
 
Histogram with largst rectangle.cpp
Histogram with largst rectangle.cpp
 
 
House Robber.cpp
House Robber.cpp
 
 
Index of first 1 in a sorted array of 0s and 1s.cpp
Index of first 1 in a sorted array of 0s and 1s.cpp
 
 
Inorder Traversal Of Tree (Recursive).cpp
Inorder Traversal Of Tree (Recursive).cpp
 
 
Inorder predecessor and successor for a given key in BST.cpp
Inorder predecessor and successor for a given key in BST.cpp
 
 
Intersection Of 2 Arrays.cpp
Intersection Of 2 Arrays.cpp
 
 
Intersection of Two Linked Lists.cpp
Intersection of Two Linked Lists.cpp
 
 
IntersectionOfArrays.cpp
IntersectionOfArrays.cpp
 
 
Is Subsequence.cpp
Is Subsequence.cpp
 
 
Isogram string.cpp
Isogram string.cpp
 
 
K Closest Points to Origin.cpp
K Closest Points to Origin.cpp
 
 
K closest points.cpp
K closest points.cpp
 
 

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Data Structures And Algorithms For Software Developers

alt text

Table of contents

  • General Info
  • Languages
  • Environment & Tools
  • License

General Info

Solutions to the most commonly asked interview problems for aspiring software developers. Questions are picked from a mix of platforms like Leetcode, Hackerrank, GFG etc.

Languages

The repository contains programs written in:

  • C++
  • C
  • Java

Environment & Tools

  • VS Code
  • Leetcode / Hackerrank / Geeks For Geeks / InterviewBit / Codechef

License

BSD 2-Clause "Simplified" License

Maintainer : Dishan Purkayastha

About

Solutions to the most commonly asked interview problems for aspiring software developers. Questions are picked from a mix of platforms like Leetcode, Hackerrank, GFG etc.

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Readme

License

BSD-2-Clause license
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Languages

  • C++ 89.4%
  • C 9.0%
  • Java 1.6%