using System; using System.Collections.Generic; using System.Linq; namespace TestConsole { /// <summary> /// Класс который содержит символ и его порядковый номер в строке, зависящий от алфавита. /// </summary> class CharNum { #region Fields /// <summary> /// Символ. /// </summary> private char _ch; /// <summary> /// Порядковый номер зависящий от алфавита. /// </summary> private int _numberInWord; #endregion Fieds #region Properties /// <summary> /// Символ. /// </summary> public char Ch { get { return _ch; } set { if (_ch == value) return; _ch = value; } } /// <summary> /// Порядковый номер в строке, зависящий от алфавита. /// </summary> public int NumberInWord { get { return _numberInWord; } set { if (_numberInWord == value) return; _numberInWord = value; } } #endregion Properties } class Program { static void Main(string[] args) { // Первый ключ, количество столбцов string firstKey = "Сканнерс"; // Второй ключ, количество строк string secondKey = "Надобно"; // Предложение которое шифруем string stringUser = "Альбертовововововововиччччччччччччччччччччччччччччччччччччччччч"; // Матрица в которой производим шифрование char[,] matrix = new char[secondKey.Length, firstKey.Length]; // Счетчик символов в строке int countSymbols = 0; // Переводим строки в массивы типа char char[] charsFirstKey = firstKey.ToCharArray(); char[] charsSecondKey = secondKey.ToCharArray(); char[] charStringUser = stringUser.ToCharArray(); // Создаем списки в которых будут храниться символы и порядковы номера символов List<CharNum> listCharNumFirst = new List<CharNum>(firstKey.Length); List<CharNum> listCharNumSecond = new List<CharNum>(secondKey.Length); // Заполняем символами из ключей listCharNumFirst = FillListKey(charsFirstKey); listCharNumSecond = FillListKey(charsSecondKey); // Заполняем порядковыми номерами listCharNumFirst = FillingSerialsNumber(listCharNumFirst); listCharNumSecond = FillingSerialsNumber(listCharNumSecond); ShowKey(listCharNumFirst, "Первый ключ: "); ShowKey(listCharNumSecond, "Второй ключ: "); // Заполнение матрицы строкой пользователя for (int i = 0; i < listCharNumSecond.Count; i++) { for(int j = 0; j < listCharNumFirst.Count; j++) { matrix[i, j] = charStringUser[countSymbols++]; } } ShowMatrix(matrix, "Первоначальное значение: "); countSymbols = 0; // Заполнение матрицы с учетом шифрования. // Переставляем столбцы по порядку следования в первом ключе. // Затем переставляем строки по порядку следования во втором ключа. for(int i = 0; i < listCharNumSecond.Count; i++) { for(int j = 0; j < listCharNumFirst.Count; j++) { matrix[listCharNumSecond[i].NumberInWord, listCharNumFirst[j].NumberInWord] = charStringUser[countSymbols++]; } } ShowMatrix(matrix, "Зашифрованное значение: "); Console.ReadKey(); } #region Methods /// <summary> /// Возвращает порядковый номер символа по алфавиту. /// </summary> /// <param name="s">Символ, чей порядковый номер, необходимо узнать.</param> /// <returns></returns> public static int GetNumberInThealphabet(char s) { string str = @"АаБбВвГгДдЕеЁёЖжЗзИиЙйКкЛлМмНнОоПпРрСсТтУуФфХхЦцЧчШшЩщЪъЫыЬьЭэЮюЯя"; int number = str.IndexOf(s) / 2; return number; } /// <summary> /// Заполнение символами списка с ключом. /// </summary> /// <param name="chars">массив символов.</param> /// <returns>Список символов.</returns> public static List<CharNum> FillListKey(char[] chars) { List<CharNum> listKey = new List<CharNum>(chars.Length); for (int i = 0; i < chars.Length; i++) { CharNum charNum = new CharNum() { Ch = chars[i], NumberInWord = GetNumberInThealphabet(chars[i]) }; listKey.Add(charNum); } return listKey; } /// <summary> /// Отображение ключа. /// </summary> /// <param name="listCharNum">Список в котором содержатся символы с порядковыми номерами.</param> public static void ShowKey(List<CharNum> listCharNum, string message) { Console.WriteLine(message); foreach (var i in listCharNum) { Console.Write(i.Ch + " "); } Console.WriteLine(); foreach (var i in listCharNum) { Console.Write(i.NumberInWord + " "); } Console.WriteLine(); Console.WriteLine(); } /// <summary> /// Заполнение символов ключей, порядковыми номерами. /// </summary> /// <param name="listCharNum"></param> /// <returns></returns> public static List<CharNum> FillingSerialsNumber( List<CharNum> listCharNum) { int count = 0; var result = listCharNum.OrderBy(a => a.NumberInWord); foreach (var i in result) { i.NumberInWord = count++; } return listCharNum; } /// <summary> /// Отображение матрицы. /// </summary> /// <param name="matrix">Матрица с символами.</param> public static void ShowMatrix(char[,] matrix, string message) { Console.WriteLine(message); for(int i = 0; i < matrix.GetLength(0); i++) { for(int j = 0; j < matrix.GetLength(1); j++) { Console.Write(matrix[i, j] + " "); } Console.WriteLine(); } Console.WriteLine(); Console.WriteLine(); } #endregion Methods } }
Write, Run & Share C# code online using OneCompiler's C# online compiler for free. It's one of the robust, feature-rich online compilers for C# language, running on the latest version 8.0. Getting started with the OneCompiler's C# compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C#
and start coding.
OneCompiler's C# online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
using System;
namespace Sample
{
class Test
{
public static void Main(string[] args)
{
string name;
name = Console.ReadLine();
Console.WriteLine("Hello {0} ", name);
}
}
}
C# is a general purpose object-oriented programming language by Microsoft. Though initially it was developed as part of .net but later it was approved by ECMA and ISO standards.
You can use C# to create variety of applications, like web, windows, mobile, console applications and much more using Visual studio.
Data Type | Description | Range | size |
---|---|---|---|
int | To store integers | -2,147,483,648 to 2,147,483,647 | 4 bytes |
double | to store large floating point numbers with decimals | can store 15 decimal digits | 8 bytes |
float | to store floating point numbers with decimals | can store upto 7 decimal digits | 4 bytes |
char | to store single characters | - | 2 bytes |
string | to stores text | - | 2 bytes per character |
bool | to stores either true or false | - | 1 bit |
datatype variable-name = value;
When ever you want to perform a set of operations based on a condition or set of few conditions IF-ELSE is used.
if(conditional-expression) {
// code
}
else {
// code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression) {
case value1:
// code
break; // optional
case value2:
// code
break; // optional
...
default:
// code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement) {
// code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while(condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Array is a collection of similar data which is stored in continuous memory addresses. Array values can be fetched using index. Index starts from 0 to size-1.
data-type[] array-name;
Method is a set of statements which gets executed only when they are called. Call the method name in the main function to execute the method.
static void method-name()
{
// code to be executed
}