aannenko

using System;

namespace Crypt
{
    public static class CryptSharp
    {
        private const string m_encryptionSaltCharacters =
            "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789./";

        private const int m_desIterations = 16;

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FreePlay CM3 Software setup

At the time of writing of this guide, the current version of the image is Freeplay_CM3-and-Zero2_Test_22061501.img.gz

Things you need

• FreePlay board (the board), bundled screen
• Raspberry Pi CM3 or CM3+ module
• at least a 2 Ampere phone charger with a Micro USB
• microSD (one of the best for RPi 3/4 is Samsung EVO+)
• USB keyboard

aannenko

using System;

foreach (var text in new BruteForceEnumerable(2, "abc"))
    Console.WriteLine(text.ToString());

public class BruteForceEnumerable
{
    private readonly int _maxTextLength;
    private readonly string _characters;

aannenko

#nullable enable

using System;
using System.Threading;
using System.Threading.Tasks;

public sealed class AwaiterTaskSource<TResult>
{
    private readonly CancellationTokenSource _cancellationTokenSource;
    private int _awaitersCount = 0;

aannenko

// Introduction to Algorithms, Third Edition - 2009

using System;
using System.Collections.Generic;

Console.WriteLine(string.Join(' ', new[] { 5, 2, 4, 6, 1, 3 }.InsertionSortOptimized()));
Console.WriteLine(string.Join(' ', new[] { 31, 41, 59, 26, 41, 58 }.InsertionSortOptimized()));

static class ArrayExtensions
{

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// Introduction to Algorithms, Third Edition - 2009

using System;
using System.Collections.Generic;

Console.WriteLine(string.Join(' ', new[] { 2, 8, 7, 1, 3, 5, 6, 4 }.QuickSort()));
Console.WriteLine(string.Join(' ', new[] { 31, 41, 59, 26, 41, 58 }.QuickSort()));

static class ArrayExtensions
{

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public sealed class Node
{
    private readonly Dictionary<char, Node> _children = [];

    public IReadOnlyCollection<Node> Children => _children.Values;
    
    public string? Word { get; private set; }

    public Node GetOrAddChild(char letter, string? word = null)
    {

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var ints = new int[] { 2, 3, 4, 10, 40 };
Console.WriteLine(IndexOfUsingIterativeBinarySearch(ints, 3)); // 1
Console.WriteLine(IndexOfUsingRecursiveBinarySearch(ints, 0, ints.Length - 1, 3)); // 1

static int IndexOfUsingIterativeBinarySearch(int[] ints, int searchedValue)
{
    int low = 0;
    int high = ints.Length - 1;
    while (low <= high)
    {

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Console.WriteLine(RotatedBinarySearch([6, 7, 8, 9, 10, 1, 2, 3, 5], 3)); // 7
Console.WriteLine(RotatedBinarySearch([1, 1, 1, 1, 1, 1, 2, 1, 1, 1], 2)); // 6

static int RotatedBinarySearch(int[] ints, int searchedValue)
{
    var low = 0;
    var high = ints.Length - 1;
    while (low <= high)
    {
        var mid = low + (high - low) / 2;

aannenko

namespace LibraryManager;

public sealed record Book(string Name, bool CanBeBorrowed, int? AgeRating) : ILibraryItem;