static void Main(string[] args)
{
// Program requirements common to all variants
int nrow, ncol, start, end;
nrow = ncol = 100;
Console.WriteLine($"Rows - {nrow}, cols - {ncol}");
// one-dimensional array
Person[] persons1 = new Person[nrow * ncol];
for (int i = 0; i < persons1.Length; ++i)
{
persons1[i] = new Person();
}
// two-dimensional rectangular array
Person[,] persons2 = new Person[nrow, ncol];
for (int i = 0; i < persons2.GetLength(0); ++i)
{
for (int j = 0; j < persons2.GetLength(1); ++j)
{
persons2[i, j] = new Person();
}
}
// two-dimensional stepped array
Person[][] persons3 = new Person[nrow][];
for (int i = 0; i < persons3.Length; ++i)
{
persons3[i] = new Person[ncol];
for (int j = 0; j < persons3[i].Length; ++j)
{
persons3[i][j] = new Person();
}
}
// Enviroment.TickCount []
decimal avgAge = 0;
start = Environment.TickCount;
foreach (Person item in persons1)
{
avgAge += item.Age;
}
end = Environment.TickCount;
Console.WriteLine($"Time [] = {end - start}");
// Enviroment.TickCount [,]
avgAge = 0;
start = Environment.TickCount;
foreach (Person item in persons2)
{
avgAge += item.Age;
}
end = Environment.TickCount;
Console.WriteLine($"Time [,] = {end - start}");
// Enviroment.TickCount [][]
avgAge = 0;
start = Environment.TickCount;
foreach (Person[] item in persons3)
{
foreach (Person subitem in item)
{
avgAge += subitem.Age;
}
}
end = Environment.TickCount;
Console.WriteLine($"Time [][] = {end - start}");
Console.WriteLine();
// Variant 1
Console.WriteLine("\tStudent");
Exam exam1 = new Exam("C#", new DateTime(2020, 09, 20), 10);
Exam exam2 = new Exam("C#", new DateTime(2020, 10, 11), 10);
Exam exam3 = new Exam("C++", new DateTime(2021, 11, 22), 10);
// Array[]
Student[] students1 = new Student[nrow * ncol];
for (int i = 0; i < students1.Length; i++)
{
students1[i] = new Student();
}
avgAge = 0;
start = Environment.TickCount;
foreach (Student item in students1)
{
avgAge += item.StudentData.Age;
}
end = Environment.TickCount;
Console.WriteLine($"Time [] = {end - start}");
// Array[,]
Student[,] students2 = new Student[nrow, ncol];
for (int i = 0; i < nrow; i++)
{
for (int j = 0; j < ncol; j++)
{
students2[i, j] = new Student();
}
}
avgAge = 0;
start = Environment.TickCount;
foreach (Student item in students2)
{
avgAge += item.StudentData.Age;
}
end = Environment.TickCount;
Console.WriteLine($"Time [,] = {end - start}");
// Array[][]
Student[][] students3 = new Student[nrow][];
for (int i = 0; i < students3.Length; ++i)
{
students3[i] = new Student[ncol];
for (int j = 0; j < students3[i].Length; ++j)
{
students3[i][j] = new Student();
}
}
avgAge = 0;
start = Environment.TickCount;
foreach (Student[] item in students3)
{
foreach (Student subitem in item)
{
avgAge += subitem.StudentData.Age;
}
}
end = Environment.TickCount;
Console.WriteLine($"Time [][] = {end - start}");
Console.WriteLine();
Student student = new Student(new Person("Vova", "Batsyk", new DateTime(1987, 07, 27), Gender.Male), Education.Master, 2, exam1, exam2, exam3);
student.AddExams(new Exam("Asp .NET Core", DateTime.Today, 8));
Console.WriteLine(student.ToString());
Console.WriteLine(student.toShortString());
Console.WriteLine($"Bachelor? {student[Education.Bachelor]}");
Console.WriteLine();
// Variant 2
Console.WriteLine("\tMagazine 2");
Console.WriteLine();
Article article1 = new Article();
Magazine magazine = new Magazine("The best", Frequency.Monthly, new DateTime(2020, 10, 02), 1002);
magazine.AddArticles(new Article(persons1[0], "New", 7.5));
magazine.AddArticles(article1);
Console.WriteLine("ToString");
Console.WriteLine(magazine.ToString());
Console.WriteLine("toShortString");
Console.WriteLine(magazine.toShortString());
Console.WriteLine();
// Array[]
Article[] articles1 = new Article[nrow * ncol];
for (int i = 0; i < articles1.Length; i++)
{
articles1[i] = new Article();
}
avgAge = 0;
start = Environment.TickCount;
foreach (Article item in articles1)
{
avgAge += item.Author.Age;
}
end = Environment.TickCount;
Console.WriteLine($"Time [] = {end - start}");
// Array[,]
Article[,] articles2 = new Article[nrow, ncol];
for (int i = 0; i < nrow; i++)
{
for (int j = 0; j < ncol; j++)
{
articles2[i, j] = new Article();
}
}
avgAge = 0;
start = Environment.TickCount;
foreach (Article item in articles2)
{
avgAge += item.Author.Age;
}
end = Environment.TickCount;
Console.WriteLine($"Time [,] = {end - start}");
// Array[][]
Article[][] articles3 = new Article[nrow][];
for (int i = 0; i < articles3.Length; ++i)
{
articles3[i] = new Article[ncol];
for (int j = 0; j < articles3[i].Length; ++j)
{
articles3[i][j] = new Article();
}
}
avgAge = 0;
start = Environment.TickCount;
foreach (Article[] item in articles3)
{
foreach (Article subitem in item)
{
avgAge += subitem.Author.Age;
}
}
end = Environment.TickCount;
Console.WriteLine($"Time [][] = {end - start}");
Console.WriteLine();
}