Disclaimer

	Most of the problems are solved by using the Algo library.
	Solutions to LeetCode problems.
	Solutions to InterviewBit problems.

The problem solutions and implementations are entirely provided by Alex Prut. The code is not refactored, no coding style is followed, the only purpose of the written code is to pass all the platform tests of a given problem.

Table of contents

1. Algorithms
2. Data Structures
3. Functional Programming
4. Java
5. C++
6. Python
7. Distributed Systems
8. Mathematics
9. Artificial Intelligence
10. Linux Shell
11. Sql

Algorithms

Subdomain	Challenge	Difficulty	Score	Solution
Warmup	Solve Me First	Easy	1	Solution.cpp
Warmup	Simple Array Sum	Easy	10	Solution.cpp
Warmup	Compare the Triplets	Easy	10	Solution.cpp
Warmup	A Very Big Sum	Easy	10	Solution.cpp
Warmup	Diagonal Difference	Easy	10	Solution.cpp
Warmup	Plus Minus	Easy	10	Solution.cpp
Warmup	Staircase	Easy	10	Solution.cpp
Warmup	Mini-Max Sum	Easy	10	Solution.cpp
Warmup	Birthday Cake Candles	Easy	10	Solution.java
Warmup	Time Conversion	Easy	15	Solution.java
Implementation	Grading Students	Easy	10	Solution.java
Implementation	Apple and Orange	Easy	10	Solution.cpp
Implementation	Kangaroo	Easy	10	Solution.cpp
Implementation	Between Two Sets	Easy	10	Solution.java
Implementation	Breaking the Records	Easy	10	Solution.cpp
Implementation	Birthday Chocolate	Easy	10	Solution.java
Implementation	Divisible Sum Pairs	Easy	10	Solution.java
Implementation	Migratory Birds	Easy	10	Solution.java
Implementation	Bon Appétit	Easy	10	Solution.java
Implementation	Sock Merchant	Easy	10	Solution.java
Implementation	Drawing Book	Easy	10	Solution.java
Implementation	Counting Valleys	Easy	15	Solution.java
Implementation	Electronics Shop	Easy	15	Solution.java
Implementation	Cats and a Mouse	Easy	15	Solution.java
Implementation	Picking Numbers	Easy	20	Solution.java
Implementation	The Hurdle Race	Easy	15	Solution.java
Implementation	Designer PDF Viewer	Easy	20	Solution.java
Implementation	Utopian Tree	Easy	20	Solution.java
Implementation	Angry Professor	Easy	20	Solution.java
Implementation	Beautiful Days at the Movies	Easy	15	Solution.java
Implementation	Viral Advertising	Easy	15	Solution.java
Implementation	Save the Prisoner!	Easy	15	Solution.java
Implementation	Circular Array Rotation	Easy	20	Solution.java
Implementation	Sequence Equation	Easy	20	Solution.java
Implementation	Jumping on the Clouds: Revisited	Easy	15	Solution.java
Implementation	Find Digits	Easy	25	Solution.java
Implementation	Extra Long Factorials	Medium	20	Solution.cpp
Implementation	Append and Delete	Easy	20	Solution.java
Implementation	Sherlock and Squares	Easy	20	Solution.java
Implementation	Library Fine	Easy	15	Solution.java
Implementation	Cut the sticks	Easy	25	Solution.java
Implementation	Repeated String	Easy	20	Solution.java
Implementation	Jumping on the Clouds	Easy	20	Solution.java
Implementation	Equalize the Array	Easy	20	Solution.java
Implementation	Queen's Attack II	Medium	30	Solution.java
Implementation	ACM ICPC Team	Easy	25	Solution.java
Implementation	Taum and B'day	Easy	25	Solution.java
Implementation	Modified Kaprekar Numbers	Easy	30	Solution.java
Implementation	Beautiful Triplets	Easy	20	Solution.java
Implementation	Minimum Distances	Easy	20	Solution.java
Implementation	Halloween Sale	Easy	20	Solution.java
Implementation	The Time in Words	Medium	25	Solution.cpp
Implementation	Chocolate Feast	Easy	25	Solution.java
Implementation	Service Lane	Easy	20	Solution.java
Implementation	Lisa's Workbook	Easy	25	Solution.java
Implementation	Flatland Space Stations	Easy	25	Solution.java
Implementation	Fair Rations	Easy	25	Solution.java
Implementation	Cavity Map	Easy	30	Solution.java
Implementation	Manasa and Stones	Easy	30	Solution.java
Implementation	Happy Ladybugs	Easy	30	Solution.java
Implementation	Strange Counter	Easy	30	Solution.java
Strings	Super Reduced String	Easy	10	Solution.java
Strings	CamelCase	Easy	15	Solution.java
Strings	Strong Password	Easy	15	Solution.java
Strings	Two Characters	Easy	20	Solution.java
Strings	Caesar Cipher	Easy	15	Solution.java
Strings	Mars Exploration	Easy	15	Solution.java
Strings	HackerRank in a String!	Easy	20	Solution.java
Strings	Pangrams	Easy	20	Solution.java
Strings	Separate the Numbers	Easy	20	Solution.java
Strings	Funny String	Easy	25	Solution.java
Strings	Gemstones	Easy	20	Solution.java
Strings	Alternating Characters	Easy	20	Solution.java
Strings	Beautiful Binary String	Easy	20	Solution.java
Strings	The Love-Letter Mystery	Easy	20	Solution.java
Strings	Palindrome Index	Easy	25	Solution.java
Strings	Anagram	Easy	25	Solution.java
Strings	Making Anagrams	Easy	30	Solution.java
Strings	Game of Thrones - I	Easy	30	Solution.java
Strings	Two Strings	Easy	25	Solution.java
Strings	String Construction	Easy	25	Solution.java
Strings	Sherlock and the Valid String	Medium	35	Solution.java
Strings	Common Child	Medium	60	Solution.java
Sorting	Big Sorting	Easy	20	Solution.java
Sorting	Intro to Tutorial Challenges	Easy	30	Solution.java
Sorting	Insertion Sort - Part 1	Easy	30	Solution.cpp
Sorting	Insertion Sort - Part 2	Easy	30	Solution.java
Sorting	Correctness and the Loop Invariant	Easy	30	Solution.java
Sorting	Running Time of Algorithms	Easy	30	Solution.java
Sorting	Quicksort 1 - Partition	Easy	10	Solution.java
Sorting	Counting Sort 1	Easy	30	Solution.java
Sorting	Counting Sort 2	Easy	30	Solution.java
Sorting	The Full Counting Sort	Medium	40	Solution.java
Sorting	Closest Numbers	Easy	35	Solution.cpp
Sorting	Find the Median	Easy	35	Solution.java
Search	Hackerland Radio Transmitters	Medium	25	Solution.java
Search	Ice Cream Parlor	Easy	30	Solution.java
Search	KnightL on a Chessboard	Medium	35	Solution.cpp
Search	Minimum Loss	Medium	35	Solution.java
Search	Missing Numbers	Easy	45	Solution.java
Search	Pairs	Medium	50	Solution.java
Search	Sherlock and Array	Easy	40	Solution.java
Search	Connected Cells in a Grid	Medium	50	Solution.java
Search	Count Luck	Medium	50	Solution.java
Search	Cut the Tree	Medium	50	Solution.java
Search	Red Knight's Shortest Path	Medium	60	Solution.java
Graph Theory	Roads and Libraries	Medium	30	Solution.java
Graph Theory	Journey to the Moon	Medium	50	Solution.java
Graph Theory	Breadth First Search: Shortest Reach	Medium	55	Solution.java
Graph Theory	Kruskal (MST): Really Special Subtree	Medium	50	Solution.java
Graph Theory	Even Tree	Medium	50	Solution.java
Graph Theory	Snakes and Ladders: The Quickest Way Up	Medium	50	Solution.java
Graph Theory	Dijkstra: Shortest Reach 2	Hard	60	Solution.java
Graph Theory	The Story of a Tree	Medium	50	Solution.cpp
Graph Theory	Prim's (MST) : Special Subtree	Medium	60	Solution.java
Graph Theory	Floyd : City of Blinding Lights	Hard	75	Solution.java
Greedy	Minimum Absolute Difference in an Array	Easy	15	Solution.java
Greedy	Marc's Cakewalk	Easy	15	Solution.cpp
Greedy	Grid Challenge	Easy	20	Solution.java
Greedy	Luck Balance	Easy	20	Solution.cpp
Greedy	Maximum Perimeter Triangle	Easy	20	Solution.java
Greedy	Beautiful Pairs	Easy	30	Solution.java
Greedy	Sherlock and The Beast	Easy	30	Solution.java
Greedy	Priyanka and Toys	Easy	30	Solution.java
Greedy	Mark and Toys	Easy	35	Solution.java
Greedy	Greedy Florist	Medium	35	Solution.java
Greedy	Max Min	Medium	35	Solution.java
Greedy	Jim and the Orders	Easy	40	Solution.java
Greedy	Permuting Two Arrays	Easy	40	Solution.java
Greedy	Goodland Electricity	Medium	40	Solution.java
Dynamic Programming	The Coin Change Problem	Hard	60	Solution.cpp
Dynamic Programming	Sherlock and Cost	Medium	50	Solution.java
Dynamic Programming	Candies	Medium	50	Solution.java
Dynamic Programming	Fibonacci Modified	Medium	45	Solution.java
Dynamic Programming	Abbreviation	Medium	40	Solution.java
Dynamic Programming	The Maximum Subarray	Medium	50	Solution.cpp
Dynamic Programming	Substring Diff	Medium	50/60	Solution.java
Dynamic Programming	Stock Maximize	Medium	50	Solution.java
Dynamic Programming	Knapsack	Medium	60	Solution.java
Dynamic Programming	Bricks Game	Medium	55	Solution.java
Dynamic Programming	The Longest Common Subsequence	Medium	55	Solution.java
Constructive Algorithms	Flipping the Matrix	Medium	30	Solution.java
Bit Manipulation	Lonely Integer	Easy	20	Solution.java
Bit Manipulation	Maximizing XOR	Easy	30	Solution.java
Bit Manipulation	Sum vs XOR	Easy	25	Solution.java
Bit Manipulation	Flipping bits	Easy	40	Solution.java
Recursion	The Power Sum	Medium	20	Solution.java
Recursion	Recursive Digit Sum	Medium	30	Solution.java
Game Theory	Game of Stones	Easy	15	Solution.java
Game Theory	Tower Breakers	Easy	15	Solution.java

Data Structures

Subdomain	Challenge	Difficulty	Score	Solution
Arrays	Arrays - DS	Easy	10	Solution.java
Arrays	2D Array - DS	Easy	15	Solution.cpp
Arrays	Dynamic Array	Easy	15	Solution.java
Arrays	Left Rotation	Easy	20	Solution.java
Arrays	Sparse Arrays	Medium	25	Solution.cpp
Arrays	Array Manipulation	Hard	60	Solution.java
Linked Lists	Print the Elements of a Linked List	Easy	5	Solution.java
Linked Lists	Insert a Node at the Tail of a Linked List	Easy	5	Solution.cpp
Linked Lists	Insert a node at the head of a linked list	Easy	5	Solution.cpp
Linked Lists	Insert a node at a specific position in a linked list	Easy	5	Solution.java
Linked Lists	Delete a Node	Easy	5	Solution.cpp
Linked Lists	Print in Reverse	Easy	5	Solution.cpp
Linked Lists	Reverse a linked list	Easy	5	Solution.java
Linked Lists	Compare two linked lists	Easy	5	Solution.cpp
Linked Lists	Merge two sorted linked lists	Easy	5	Solution.java
Linked Lists	Get Node Value	Easy	5	Solution.java
Linked Lists	Delete duplicate-value nodes from a sorted linked list	Easy	5	Solution.java
Linked Lists	Cycle Detection	Medium	5	Solution.java
Linked Lists	Find Merge Point of Two Lists	Easy	5	Solution.java
Linked Lists	Inserting a Node Into a Sorted Doubly Linked List	Easy	5	Solution.cpp
Linked Lists	Reverse a doubly linked list	Easy	5	Solution.cpp
Trees	Tree: Preorder Traversal	Easy	10	Solution.java
Trees	Tree: Postorder Traversal	Easy	10	Solution.java
Trees	Tree: Inorder Traversal	Easy	10	Solution.java
Trees	Tree: Height of a Binary Tree	Easy	10	Solution.java
Trees	Tree : Top View	Easy	20	Solution.java
Trees	Tree: Level Order Traversal	Easy	20	Solution.java
Trees	Binary Search Tree : Insertion	Easy	20	Solution.java
Trees	Tree: Huffman Decoding	Medium	20	Solution.java
Trees	Binary Search Tree : Lowest Common Ancestor	Easy	30	Solution.java
Trees	Swap Nodes [Algo]	Medium	40	Solution.java
Trees	Is This a Binary Search Tree?	Medium	30	Solution.cpp
Balanced Trees	Self Balancing Tree	Medium	50	Solution.java
Stacks	Maximum Element	Easy	20	Solution.java
Stacks	Balanced Brackets	Medium	25	Solution.java
Stacks	Equal Stacks	Easy	25	Solution.java
Stacks	Largest Rectangle	Medium	50	Solution.java
Stacks	Simple Text Editor	Medium	65	Solution.java
Stacks	Waiter	Medium	75	Solution.java
Queues	Queue using Two Stacks	Medium	30	Solution.cpp
Heap	QHEAP1	Easy	25	Solution.java
Heap	Jesse and Cookies	Easy	25	Solution.java
Heap	Find the Running Median	Hard	50	Solution.java
Disjoint Set	Merging Communities	Hard	50	Solution.cpp
Disjoint Set	Components in a graph	Medium	50	Solution.cpp
Multiple Choice	Data Structures MCQ 1	Hard	5	Solution.txt
Multiple Choice	Data Structures MCQ 2	Hard	5	Solution.txt
Multiple Choice	Data Structures MCQ 3	Hard	5	Solution.txt
Trie	Contacts	Medium	40	Solution.cpp
Trie	No Prefix Set	Hard	50	Solution.java

Functional Programming

Subdomain	Challenge	Difficulty	Score	Solution
Introduction	Solve Me First FP	Easy	3	Solution.hs
Introduction	Hello World	Easy	5	Solution.hs
Introduction	Hello World N Times	Easy	5	Solution.hs
Introduction	List Replication	Easy	10	Solution.hs
Introduction	Filter Array	Easy	10	Solution.hs
Introduction	Filter Positions in a List	Easy	10	Solution.hs
Introduction	Array Of N Elements	Easy	10	Solution.hs
Introduction	Reverse a List	Easy	10	Solution.hs
Introduction	Sum of Odd Elements	Easy	10	Solution.hs
Introduction	List Length	Easy	10	Solution.hs
Introduction	Update List	Easy	10	Solution.hs
Introduction	Evaluating e^x	Easy	20	Solution.hs
Introduction	Lambda Calculus - Reductions #1	Easy	5	Solution.txt
Introduction	Lambda Calculus - Reductions #2	Easy	5	Solution.txt
Introduction	Lambda Calculus - Reductions #3	Medium	5	Solution.txt
Introduction	Lambda Calculus - Reductions #4	Medium	5	Solution.txt
Introduction	Lambda Calculus - Evaluating Expressions #1	Easy	5	Solution.txt
Introduction	Lambda Calculus - Evaluating Expressions #2	Easy	5	Solution.txt
Introduction	Lambda Calculus - Evaluating Expressions #3	Easy	5	Solution.txt
Introduction	Lambda Calculus - Evaluating Expressions #4	Medium	5	Solution.txt
Introduction	Lambda Calculus - Evaluating Expressions #5	Medium	5	Solution.txt
Introduction	Functions or Not?	Easy	5	Solution.hs
Introduction	Compute the Perimeter of a Polygon	Easy	15	Solution.hs
Recursion	Computing the GCD	Easy	2	Solution.hs
Recursion	Fibonacci Numbers	Easy	2	Solution.hs
Recursion	Pascal's Triangle	Easy	10	Solution.hs
Recursion	String Mingling	Easy	10	Solution.hs
Recursion	String-o-Permute	Easy	10	Solution.hs
Recursion	String Compression	Easy	10	Solution.hs
Recursion	Prefix Compression	Easy	10	Solution.hs
Recursion	String Reductions	Easy	10	Solution.hs
Recursion	Sequence full of colors	Easy	10	Solution.hs
Recursion	Filter Elements	Easy	10	Solution.hs
Recursion	Super Digit	Medium	20	Solution.hs
Functional Structures	Swap Nodes	Medium	40	Solution.hs
Functional Structures	Valid BST	Medium	20	Solution.hs
Memoization and DP	Pentagonal Numbers	Easy	30	Solution.hs
Memoization and DP	Fibonacci	Easy	30	Solution.hs
Ad Hoc	Rotate String	Easy	20	Solution.hs
Ad Hoc	Remove Duplicates	Easy	10	Solution.hs
Ad Hoc	Common Divisors	Easy	20	Solution.hs
Ad Hoc	Subset Sum	Easy	20	Solution.hs

Java

Subdomain	Challenge	Difficulty	Score	Solution
Introduction	Welcome to Java!	Easy	3	Solution.java
Introduction	Java Stdin and Stdout I	Easy	5	Solution.java
Introduction	Java If-Else	Easy	10	Solution.java
Introduction	Java Stdin and Stdout II	Easy	10	Solution.java
Introduction	Java Output Formatting	Easy	10	Solution.java
Introduction	Java Loops I	Easy	10	Solution.java
Introduction	Java Loops II	Easy	10	Solution.java
Introduction	Java Datatypes	Easy	10	Solution.java
Introduction	Java End-of-file	Easy	10	Solution.java
Introduction	Java Static Initializer Block	Easy	10	Solution.java
Introduction	Java Int to String	Easy	10	Solution.java
Introduction	Java Date and Time	Easy	15	Solution.java
Introduction	Java Currency Formatter	Easy	15	Solution.java
Strings	Java Strings Introduction	Easy	5	Solution.java
Strings	Java Substring	Easy	5	Solution.java
Strings	Java Substring Comparisons	Easy	10	Solution.java
Strings	Java String Reverse	Easy	10	Solution.java
Strings	Java Anagrams	Easy	10	Solution.java
Strings	Java String Tokens	Easy	15	Solution.java
Strings	Pattern Syntax Checker	Easy	20	Solution.java
Strings	Java Regex	Medium	25	Solution.java
Strings	Java Regex 2 - Duplicate Words	Medium	25	Solution.java
Strings	Valid Username Regular Expression	Easy	20	Solution.java
Strings	Tag Content Extractor	Medium	20	Solution.java
BigNumber	Java BigInteger	Easy	10	Solution.java
BigNumber	Java BigDecimal	Medium	20	Solution.java
BigNumber	Java Primality Test	Easy	20	Solution.java
Data Structures	Java 1D Array	Easy	5	Solution.java
Data Structures	Java 2D Array	Easy	10	Solution.java
Data Structures	Java Subarray	Easy	10	Solution.java
Data Structures	Java Arraylist	Easy	10	Solution.java
Data Structures	Java 1D Array (Part 2)	Medium	25	Solution.java
Data Structures	Java List	Easy	15	Solution.java
Data Structures	Java Map	Easy	10	Solution.java
Data Structures	Java Stack	Medium	20	Solution.java
Data Structures	Java Hashset	Easy	10	Solution.java
Data Structures	Java Generics	Easy	15	Solution.java
Data Structures	Java Comparator	Medium	10	Solution.java
Data Structures	Java Sort	Easy	10	Solution.java
Data Structures	Java Dequeue	Medium	20	Solution.java
Data Structures	Java BitSet	Easy	20	Solution.java
Data Structures	Java Priority Queue	Medium	20	Solution.java
Object Oriented Programming	Java Inheritance I	Easy	5	Solution.java
Object Oriented Programming	Java Inheritance II	Easy	10	Solution.java
Object Oriented Programming	Java Abstract Class	Easy	10	Solution.java
Object Oriented Programming	Java Interface	Easy	10	Solution.java
Object Oriented Programming	Java Method Overriding	Easy	10	Solution.java
Object Oriented Programming	Java Method Overriding 2 (Super Keyword)	Easy	10	Solution.java
Object Oriented Programming	Java Instanceof keyword	Easy	10	Solution.java
Object Oriented Programming	Java Iterator	Easy	15	Solution.java
Exception Handling	Java Exception Handling (Try-catch)	Easy	10	Solution.java
Exception Handling	Java Exception Handling	Easy	15	Solution.java
Advanced	Java Varargs - Simple Addition	Easy	15	Solution.java
Advanced	Java Reflection - Attributes	Easy	15	Solution.java
Advanced	Can You Access?	Medium	15	Solution.java
Advanced	Prime Checker	Medium	25	Solution.java
Advanced	Java Factory Pattern	Easy	15	Solution.java
Advanced	Java Singleton Pattern	Easy	15	Solution.java
Advanced	Java Visitor Pattern	Medium	40	Solution.java
Advanced	Java Annotations	Medium	25	Solution.java
Advanced	Covariant Return Types	Easy	20	Solution.java
Advanced	Java Lambda Expressions	Medium	30	Solution.java
Advanced	Java MD5	Medium	30	Solution.java
Advanced	Java SHA-256	Medium	30	Solution.java

C++

Subdomain	Challenge	Difficulty	Score	Solution
Introduction	Say "Hello, World!" With C++	Easy	5	Solution.cpp
Introduction	Input and Output	Easy	5	Solution.cpp
Introduction	Basic Data Types	Easy	10	Solution.cpp
Introduction	Conditional Statements	Easy	10	Solution.cpp
Introduction	For Loop	Easy	10	Solution.cpp
Introduction	Functions	Easy	10	Solution.cpp
Introduction	Pointer	Easy	10	Solution.cpp
Introduction	Arrays Introduction	Easy	10	Solution.cpp
Introduction	Variable Sized Arrays	Easy	30	Solution.cpp
Introduction	Virtual Functions	Medium	40	Solution.cpp
Classes	Structs	Easy	10	Solution.cpp
Classes	Class	Easy	10	Solution.cpp
Classes	Classes and Objects	Easy	20	Solution.cpp
Classes	Box It!	Easy	30	Solution.cpp
Classes	Inherited Code	Medium	30	Solution.cpp
Classes	Exceptional Server	Medium	30	Solution.cpp
Classes	Abstract Classes - Polymorphism	Hard	60	Solution.cpp
STL	Vector-Sort	Easy	10	Solution.cpp
STL	Lower Bound-STL	Easy	15	Solution.cpp
STL	Sets-STL	Easy	15	Solution.cpp
STL	Maps-STL	Easy	15	Solution.cpp
STL	Deque-STL	Medium	50	Solution.cpp
Inheritance	Inheritance Introduction	Easy	20	Solution.cpp
Inheritance	Rectangle Area	Easy	25	Solution.cpp
Inheritance	Multi Level Inheritance	Easy	25	Solution.cpp
Inheritance	Accessing Inherited Functions	Medium	30	Solution.cpp
Other Concepts	C++ Class Templates	Easy	20	Solution.cpp
Other Concepts	Preprocessor Solution	Easy	25	Solution.cpp
Other Concepts	Overload Operators	Easy	30	Solution.java

Python

Subdomain	Challenge	Difficulty	Score	Solution
Introduction	Say "Hello, World!" With Python	Easy	5	Solution.py
Introduction	Python If-Else	Easy	10	Solution.py
Introduction	Arithmetic Operators	Easy	10	Solution.py
Introduction	Python: Division	Easy	10	Solution.py
Introduction	Loops	Easy	10	Solution.py
Introduction	Write a function	Medium	10	Solution.py
Introduction	Print Function	Easy	20	Solution.py

Distributed Systems

Subdomain	Challenge	Difficulty	Score	Solution
Multiple Choise	RPC - 1	Easy	10	Solution.txt
Multiple Choise	RPC - 2	Easy	10	Solution.txt
Multiple Choise	Clients and Servers	Easy	10	Solution.txt
Multiple Choise	Distributed Objects - 1	Easy	10	Solution.txt
Multiple Choise	Distributed Objects - 2	Easy	10	Solution.txt
Multiple Choise	Distributed Objects - 3	Easy	10	Solution.txt
Multiple Choise	Distributed Objects - 4	Easy	10	Solution.txt
Multiple Choise	Distributed Objects - 5	Easy	10	Solution.txt
Multiple Choise	MapReduce - 2	Easy	10	Solution.txt
Multiple Choise	MapReduce - 3	Easy	10	Solution.txt
MapReduce Basics	Relational MapReduce Patterns #1 - Intersections	Medium	25	Solution.java
MapReduce Basics	Relational MapReduce Patterns #2 - Selections	Easy	25	Solution.java

Mathematics

Subdomain	Challenge	Difficulty	Score	Solution
Fundamentals	Find the Point	Easy	5	Solution.java
Fundamentals	Maximum Draws	Easy	5	Solution.java
Fundamentals	Handshake	Easy	10	Solution.cpp
Fundamentals	Minimum Height Triangle	Easy	10	Solution.cpp
Fundamentals	Army Game	Easy	10	Solution.cpp
Fundamentals	Connecting Towns	Easy	10	Solution.java
Fundamentals	Cutting Paper Squares	Easy	15	Solution.java
Number Theory	Constructing a Number	Easy	15	Solution.java
Algebra	Combo Meal	Easy	15	Solution.java
Geometry	Points On a Line	Easy	10	Solution.java
Linear Algebra Foundations	Linear Algebra Foundations #1 - Matrix Addition	Easy	2	Solution.txt
Linear Algebra Foundations	Linear Algebra Foundations #2 - Matrix Subtraction	Easy	2	Solution.txt
Linear Algebra Foundations	Linear Algebra Foundations #3- Matrix Multiplication	Easy	2	Solution.txt
Linear Algebra Foundations	Linear Algebra Foundations #4- Matrix Multiplication	Easy	2	Solution.txt
Linear Algebra Foundations	Linear Algebra Foundations #5 - The 100th Power of a Matrix	Medium	5	Solution.txt
Linear Algebra Foundations	Linear Algebra Foundations #9 - Eigenvalues	Hard	5	Solution.txt
Linear Algebra Foundations	Linear Algebra Foundations #10 - Eigenvectors	Medium	5	Solution.txt
Linear Algebra Foundations	Determinant of the matrix #1	Medium	5	Solution.txt
Linear Algebra Foundations	Determinant of the matrix #2	Hard	5	Solution.txt
Linear Algebra Foundations	Determinant of the matrix #3	Medium	5	Solution.txt
Linear Algebra Foundations	Eigenvalue of a Matrix I	Hard	5	Solution.txt
Linear Algebra Foundations	Eigenvalue of matrix #2	Hard	5	Solution.txt
Linear Algebra Foundations	Eigenvalue of matrix #3	Hard	5	Solution.txt
Linear Algebra Foundations	Eigenvalue of matrix #4	Hard	5	Solution.txt

Artificial Intelligence

Subdomain	Challenge	Difficulty	Score	Solution
Probability & Statistics - Foundations	Day 2: Basic Probability Puzzles #1	Easy	2	Solution.txt
Probability & Statistics - Foundations	Day 2: Basic Probability Puzzles #2	Easy	2	Solution.txt
Probability & Statistics - Foundations	Day 2: Basic Probability Puzzles #3	Easy	5	Solution.txt
Probability & Statistics - Foundations	Day 2: Basic Probability Puzzles #4	Easy	5	Solution.txt
Probability & Statistics - Foundations	Day 3: Basic Probability Puzzles #5	Medium	5	Solution.txt
Probability & Statistics - Foundations	Day 3: Basic Probability Puzzles #6	Medium	5	Solution.txt
Probability & Statistics - Foundations	Day 3: Basic Probability Puzzles #8	Hard	5	Solution.txt
Probability & Statistics - Foundations	Basic Probability Puzzles #9	Medium	5	Solution.txt
Probability & Statistics - Foundations	Basic Probability Puzzles #10	Medium	5	Solution.txt

Linux Shell

Subdomain	Challenge	Difficulty	Score	Solution
Bash	Let's Echo	Easy	1	Solution.txt
Bash	Looping and Skipping	Easy	2	Solution.txt
Bash	A Personalized Echo	Easy	1	Solution.txt
Bash	Looping with Numbers	Easy	2	Solution.txt
Bash	The World of Numbers	Easy	2	Solution.txt
Bash	Comparing Numbers	Easy	3	Solution.txt
Bash	Getting started with conditionals	Easy	3	Solution.txt
Text Processing	Cut #1	Easy	1	Solution.txt
Text Processing	Cut #2	Easy	1	Solution.txt
Text Processing	Cut #3	Easy	1	Solution.txt
Text Processing	Cut #4	Easy	1	Solution.txt
Text Processing	Cut #5	Easy	1	Solution.txt
Text Processing	Cut #6	Easy	1	Solution.txt
Text Processing	Cut #7	Easy	1	Solution.txt
Text Processing	Cut #8	Easy	1	Solution.txt
Text Processing	Cut #9	Easy	1	Solution.txt
Text Processing	Head of a Text File #1	Easy	2	Solution.txt
Text Processing	Head of a Text File #2	Easy	2	Solution.txt
Text Processing	Middle of a Text File	Easy	3	Solution.txt
Text Processing	Tail of a Text File #1	Easy	2	Solution.txt
Text Processing	Tail of a Text File #2	Easy	2	Solution.txt
Text Processing	'Tr' Command #1	Easy	1	Solution.txt
Text Processing	'Tr' Command #2	Easy	1	Solution.txt
Text Processing	'Tr' Command #3	Easy	1	Solution.txt
Text Processing	Sort Command #1	Easy	1	Solution.txt
Text Processing	Sort Command #2	Easy	1	Solution.txt
Text Processing	Sort Command #3	Easy	1	Solution.txt
Text Processing	Sort Command #4	Easy	1	Solution.txt
Text Processing	Sort Command #5	Easy	1	Solution.txt
Text Processing	'Sort' command #6	Easy	1	Solution.txt
Text Processing	'Sort' command #7	Easy	1	Solution.txt
Text Processing	'Uniq' Command #1	Easy	1	Solution.txt
Text Processing	'Uniq' Command #2	Easy	1	Solution.txt
Text Processing	'Uniq' command #4	Easy	1	Solution.txt
Grep Sed Awk	'Grep' #1	Medium	2	Solution.txt
Grep Sed Awk	'Grep' #2	Medium	2	Solution.txt
Grep Sed Awk	'Grep' #3	Medium	2	Solution.txt
Grep Sed Awk	'Grep' - A	Easy	2	Solution.txt
Grep Sed Awk	'Grep' - B	Easy	2	Solution.txt
Grep Sed Awk	'Sed' command #1	Medium	2	Solution.txt
Grep Sed Awk	'Sed' command #2	Medium	2	Solution.txt
Grep Sed Awk	'Sed' command #3	Easy	2	Solution.txt

Sql

Subdomain	Challenge	Difficulty	Score	Solution
Basic Select	Revising the Select Query I	Easy	10	Solution.txt
Basic Select	Revising the Select Query II	Easy	10	Solution.txt
Basic Select	Select All	Easy	10	Solution.txt
Basic Select	Select By ID	Easy	10	Solution.txt
Basic Select	Japanese Cities' Attributes	Easy	10	Solution.txt
Basic Select	Japanese Cities' Names	Easy	10	Solution.txt
Basic Select	Weather Observation Station 1	Easy	15	Solution.txt
Basic Select	Weather Observation Station 3	Easy	10	Solution.txt
Basic Select	Weather Observation Station 4	Easy	10	Solution.txt
Basic Select	Weather Observation Station 5	Easy	30	Solution.txt
Basic Select	Weather Observation Station 6	Easy	10	Solution.txt
Basic Select	Weather Observation Station 7	Easy	10	Solution.txt
Basic Select	Weather Observation Station 8	Easy	15	Solution.txt
Basic Select	Weather Observation Station 9	Easy	10	Solution.txt
Basic Select	Weather Observation Station 10	Easy	10	Solution.txt
Basic Select	Weather Observation Station 11	Easy	15	Solution.txt
Basic Select	Weather Observation Station 12	Easy	15	Solution.txt
Basic Select	Higher Than 75 Marks	Easy	15	Solution.txt
Basic Select	Employee Names	Easy	10	Solution.txt
Basic Select	Employee Salaries	Easy	10	Solution.txt
Aggregation	Revising Aggregations - The Count Function	Easy	10	Solution.txt
Aggregation	Revising Aggregations - The Sum Function	Easy	10	Solution.txt
Aggregation	Revising Aggregations - Averages	Easy	10	Solution.txt
Aggregation	Average Population	Easy	10	Solution.txt
Aggregation	Japan Population	Easy	10	Solution.txt
Aggregation	The Blunder	Easy	15	Solution.txt
Aggregation	Top Earners	Easy	20	Solution.txt
Aggregation	Weather Observation Station 2	Easy	15	Solution.txt
Aggregation	Weather Observation Station 13	Easy	10	Solution.txt
Aggregation	Weather Observation Station 15	Easy	15	Solution.txt
Aggregation	Weather Observation Station 16	Easy	10	Solution.txt
Aggregation	Weather Observation Station 17	Easy	15	Solution.txt
Basic Join	Asian Population	Easy	10	Solution.java
Basic Join	African Cities	Easy	10	Solution.java
Basic Join	Average Population of Each Continent	Easy	10	Solution.java

License

Licensed under MIT.