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HackerRank-Solutions for Tutorials [Dashboard > Tutorials > (30 Days of Code), (Cracking the Coding Interview), (10 Days of Statistics) ] Solutions are in Java. Enjoy Code!

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Dashboard >
Tutorials > ** 30 Days of Code ** Cracking the Coding Interview ** 10 Days of Statistics

Open Source Love label PyPI
License: MIT

Licence

This project is licensed under the MIT License - see the LICENSE file for details

Happy Coding..

30 Days of Code

Day Challenge Difficulty Points Solution
0 Hello, World Easy 30 Solution.java
1 Data Types Easy 30 Solution.java
2 Operators Easy 30 Solution.java
3 Intro to Conditional Statements Easy 30 Solution.java
4 Class vs. Instance Easy 30 Solution.java
5 Loops Easy 30 Solution.java
6 Let's Review Easy 30 Solution.java
7 Arrays Easy 30 Solution.java
8 Dictionaries and Maps Easy 30 Solution.java
9 Recursion Easy 30 Solution.java
10 Binary Numbers Easy 30 Solution.java
11 2D Arrays Easy 30 Solution.java
12 Inheritance Easy 30 Solution.java
13 Abstract Classes Easy 30 Solution.java
14 Scope Easy 30 Solution.java
15 Linked List Easy 30 Solution.java
16 Exceptions - String to Integer Easy 30 Solution.java
17 More Exceptions Easy 30 Solution.java
18 Queues and Stacks Easy 30 Solution.java
19 Interfaces Easy 30 Solution.java
20 Sorting Easy 30 Solution.java
21 Generics Easy 30 Solution.java
22 Binary Search Trees Easy 30 Solution.java
23 BST Level-Order Traversal Easy 30 Solution.java
24 More Linked Lists Easy 30 Solution.java
25 Running Time and Complexity Easy 30 Solution.java
26 Nested Logic Easy 30 Solution.java
27 Testing Easy 30 Solution.java
28 RegEx, Patterns, and Intro to Databases Easy 30 Solution.java
29 Bitwise AND Easy 30 Solution.java

Cracking the Coding Interview

How Companies Evaluate Technical Interviews How to Approach Behavioral Questions 7 Steps to Solve Algorithm Problems 3 Algorithm Strategies
Topic Challenge Difficulty Points Solution
Data Structures Arrays: Left Rotation Easy 20 Solution.java
Data Structures Strings: Making Anagrams Easy 25 Solution.java
Data Structures Hash Tables: Ransom Note Easy 25 Solution.java
Data Structures Linked Lists: Detect a Cycle Easy 25 Solution.java
Data Structures Stacks: Balanced Brackets Medium 30 Solution.java
Data Structures Queues: A Tale of Two Stacks Medium 30 Solution.java
Data Structures Trees: Is This a Binary Search Tree? Medium 30 Solution.java
Data Structures Heaps: Find the Running Median Hard 50 Solution.java
Data Structures Tries: Contacts Hard 50 Solution.java
Algorithms Sorting: Bubble Sort Medium 30 Solution.java
Algorithms Sorting: Comparator Medium 35 Solution.java
Algorithms Merge Sort: Counting Inversions Hard 35 Solution.java
Algorithms Binary Search: Ice Cream Parlor Medium 45 Solution.java
Algorithms DFS: Connected Cell in a Grid Hard 45 Solution.java
Algorithms BFS: Shortest Reach in a Graph Hard 45 Solution.java
Techniques / Concepts Time Complexity: Primality Medium 15 Solution.java
Techniques / Concepts Recursion: Fibonacci Numbers Easy 20 Solution.java
Techniques / Concepts Recursion: Davis' Staircase Medium 30 Solution.java
Techniques / Concepts DP: Coin Change Hard 30 Solution.java
Techniques / Concepts Bit Manipulation: Lonely Integer Easy 60 Solution.java

10 Days of Statistics

Day Challenge Difficulty Points Solution
0 Mean, Median, and Mode Easy 30 Solution.java
0 Weighted Mean Easy 30 Solution.java
1 Quartiles Easy 30 Solution.java
1 Interquartile Range Easy 30 Solution.java
1 Standard Deviation Easy 30 Solution.java
2 Basic Probability Easy 10 Solution.txt
2 More Dice Easy 10 Solution.txt
2 Compound Event Probability Easy 10 Solution.txt
3 Conditional Probability Easy 10 Solution.txt
3 Cards of the Same Suit Easy 10 Solution.txt
3 Drawing Marbles Easy 10 Solution.txt
4 Binomial Distribution I Easy 30 Solution.java
4 Binomial Distribution II Easy 30 Solution.java
4 Geometric Distribution I Easy 30 Solution.java
4 Geometric Distribution II Easy 30 Solution.java
5 Poisson Distribution I Easy 30 Solution.java
5 Poisson Distribution II Easy 30 Solution.java
5 Normal Distribution I Easy 30 Solution.java
5 Normal Distribution II Easy 30 Solution.java
6 The Central Limit Theorem I Easy 30 Solution.java
6 The Central Limit Theorem II Easy 30 Solution.java
6 The Central Limit Theorem III Easy 30 Solution.java
7 Pearson Correlation Coefficient I Easy 30 Solution.java
7 Spearman's Rank Correlation Coefficient Easy 30 Solution.java
8 Least Square Regression Line Easy 30 Solution.java
8 Pearson Correlation Coefficient II Easy 30 Solution.txt
9 Multiple Linear Regression Easy 30 Solution.java

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