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Name: Thomas M. Krystyan

Type: User

Bio: Senior .NET Software Engineer (C#) --------------------------------------- You can find algorithms here, workshops prepared for others, and my private apps

Blog: https://www.linkedin.com/in/thomas-m-krystyan

Thomas M. Krystyan's Projects

apigenerator

Console application producing API interfaces from specified concrete C# classes

caesar_converter

Srcipt for encoding / decoding text messages by using Caesar's algorithm for CodeCool programming school.

exercise_anagramschecker

The algorithm to check if given strings are anagrams: => FIRED | FRIED

exercise_countingsymbolsinstring

The algorithm to counting symbols (letters, digits, special characters) from the string in a dictionary by using TryGetValue function and ref parameter. LINQ query for sorting achieved dictionary by its key (letters), and a string method to display the results.

exercise_daterange

Console application to generate date ranges from inputs (1 - n), given as arguments while executing program. Date ranges are generated dynamically and based on system local culture (language, date-time format, date separators, time zones, etc)

exercise_fibonaccisequence

Implementation of four the most popular Fibonacci sequence algorithms: 1. iteration with temporary variable, FOR loop, incrementation, summarize and swap technique, 2. iteration with temporary variable, WHILE loop, decrementation, and swap technique, 3. recursion with IF condition and parameters substitution, 4. double recursion with SWITCH-CASE condition and Fibonacci formula: F(n) = F(n-1) + F(n-2), 5. upgraded and optimalized version of previous formula-algorithm which is using memorization strategy. Adding implementation of ExecutableStopwatch and method to count the actual runtime. Implementation of ThreadPool for paralleling calculations (used with delegate Func<>). Implementation of small console's helper's methods and flow logic in application's Main.

exercise_largestpalindromefromprimenumbers

Algorithm which consists of palindrome algorithm, prime numbers algorithm, prime numbers product calculation and composition algorithm, swap, unit tests included.

exercise_linkedlist

Own implementation of default behavior of the C# two directional, lookbehind and lookahead, generic LinkedList made with Nodes (objects) instead of classical list.

exercise_primenumberssequence

Two simple algorithms for generating a sequence of prime numbers, and for checking if input digit is a prime number.

exercise_removingduplicatedletters

The algorithm to remove duplicated characters from a given string.

exercise_sortingalgorithms

Implementations of different sorting algorithms (e.g. Bubble Sort, Quick Sort, Heap Sort) with architectonic project structure, SOLID's Open/Closed Principle (OCP) for extending the functionality (new algorithms) and Single Responsibility Principle (SRP), measuring of executable time (CPU usage) of the sorting algorithms working on the separately threads, implementing small efficiency improvements, generic-type data collections, generic conversions (boxing / unboxing), relative directories, reading numbers from the .txt file, saving sorted results to the new .txt file, RegEx substring replacing in the existing file name, and displaying achieved sorting results

exercise_stack

Two implementations of the default C# stack data type: 1st. "Generic List" (with operations on the last index of the list), 2nd. "Generic Nodes" (with operations on the previous node attached to the current node => one directional, back-looking linked list). Each implementation has the following methods: Push, Peek, Pop, MovePointer, StackLength.

exercise_stringextensions

Implementation of new extension methods for the String. 1. Method that return all first letters of each words as uppercase. 2. Method that return all even characters from a string (whitespaces included) as uppercase. 3. Method that return all even letters of each words as uppercase. 4. Method that check if current string is palindrome.

thomas-m-krystyan Goto Github PK

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