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дз семинар3-4 Потякин Арсений #9

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133d7f1
seminar03 completed
SubjectSp1rit Sep 21, 2023
825778d
Seminar04 completed
SubjectSp1rit Sep 22, 2023
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15 changes: 15 additions & 0 deletions Seminars/Seminar03/Self/Task01/Program.cs
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internal class program
{
public static void Main()
{
Console.Write("Введите количество углов: ");
int n = Convert.ToInt32(Console.ReadLine());

Console.Write("Введите длину стороны: ");
float l = Convert.ToSingle(Console.ReadLine());

Console.Write($"Площадь фигуры равна: {(n * Math.Pow(l, 2)) / (4 * Math.Tan(Math.PI / n))}");

Console.ReadKey();
}
}
10 changes: 10 additions & 0 deletions Seminars/Seminar03/Self/Task01/Task01.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
39 changes: 39 additions & 0 deletions Seminars/Seminar03/Self/Task02/Program.cs
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internal class Program
{
public static void Main()
{
Console.Write("Введите x: ");
float x = Convert.ToSingle(Console.ReadLine());

Console.Write("Введите y: ");
float y = Convert.ToSingle(Console.ReadLine());

double length = Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2));


if (y < 0)
{
Console.WriteLine("Точка не принадлежит области");
Console.ReadKey();
return;
}
if (length > 2)
{
Console.WriteLine("Точка не принадлежит области");
}
else if (length == 2 || length == 1)
{
Console.WriteLine("Точка лежит на границе");
}
else if (length < 2 && length > 1)
{
Console.WriteLine("Точка лежит внутри области");
}
else
{
Console.WriteLine("Точка не принадлежит области");
}

Console.ReadKey();
}
}
10 changes: 10 additions & 0 deletions Seminars/Seminar03/Self/Task02/Task02.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
43 changes: 43 additions & 0 deletions Seminars/Seminar03/Self/Task03/Program.cs
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using System.ComponentModel.Design;

internal class Program
{
public static void Main()
{
Console.Write("Введите x: ");
float x = Convert.ToSingle(Console.ReadLine());

Console.Write("Введите y: ");
float y = Convert.ToSingle(Console.ReadLine());

double length = Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2));


if ((y < 0) && length > 1)
{
Console.WriteLine("Точка не принадлежит области");
}
else if ((y < 0) && length < 1)
{
Console.WriteLine("Точка лежит внутри области");
}
else if ((y < 0) && length == 1)
{
Console.WriteLine("Точка лежит на границе");
}
else if (length > 2)
{
Console.WriteLine("Точка не принадлежит области");
}
else if (length == 2)
{
Console.WriteLine("Точка лежит на границе");
}
else if (length < 2)
{
Console.WriteLine("Точка лежит внутри области");
}

Console.ReadKey();
}
}
10 changes: 10 additions & 0 deletions Seminars/Seminar03/Self/Task03/Task03.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
32 changes: 32 additions & 0 deletions Seminars/Seminar03/Self/Task04/Program.cs
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internal class Program
{
public static void Main()
{
Console.Write("Введите x: ");
int x = Convert.ToInt32(Console.ReadLine());

Console.Write("Введите y: ");
int y = Convert.ToInt32(Console.ReadLine());

if (x < y)
{
double F = Math.Sin(x) + Math.Pow(Math.Cos(y), 2);
Console.WriteLine($"x, y, F: {x}, {y}, {F}");
}
else if (x == y)
{
double F = Math.Log(Math.Abs(x));
Console.WriteLine($"x, y, F: {x}, {y}, {F}");

}
else if (x > y)
{
double F = Math.Sin(Math.Pow(x, 2)) + Math.Cos(y);
Console.WriteLine($"x, y, F: {x}, {y}, {F}");

}

Console.ReadLine();

}
}
10 changes: 10 additions & 0 deletions Seminars/Seminar03/Self/Task04/Task04.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
45 changes: 45 additions & 0 deletions Seminars/Seminar03/Self/Task05/Program.cs
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internal class Program
{
public static void Main()
{
Console.Write("Введите a: ");
double a = Convert.ToSingle(Console.ReadLine());

Console.Write("Введите b: ");
double b = Convert.ToSingle(Console.ReadLine());

Console.Write("Введите c: ");
double c = Convert.ToSingle(Console.ReadLine());

string s_a = a < 0 ? $"{a}" : $"+{a}";
string s_b = b < 0 ? $"{b}" : $"+{b}";
string s_c = c < 0 ? $"{c}" : $"+{c}";

Console.WriteLine($"{s_a}x^2{s_b}x{s_c}");

if (a == 0)
{
Console.WriteLine($"Единственный корень, равный {-c / b}");
}
else if (b == 0)
{
Console.WriteLine($"Два одинаковых корня, равных +-{Math.Sqrt(-c / a)}");
}
else if ((Math.Pow(b, 2) - 4 * a * c) < 0)
{
Console.WriteLine("Нет действительных корней");
}
else if ((Math.Pow(b, 2) - 4 * a * c) == 0)
{
Console.WriteLine($"Один корень, равный: {-b / (2 * a)}");
}
else if ((Math.Pow(b, 2) - 4 * a * c) > 0)
{
double D = Math.Pow(b, 2) - 4 * a * c;
Console.WriteLine($"Первый корень, равный: {(-b - Math.Sqrt(D))/ (2 * a)}");
Console.WriteLine($"Второй корень, равный: {(-b - Math.Sqrt(D)) / (2 * a)}");
}

Console.ReadKey();
}
}
10 changes: 10 additions & 0 deletions Seminars/Seminar03/Self/Task05/Task05.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
22 changes: 22 additions & 0 deletions Seminars/Seminar04/Self/Task01/Program.cs
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internal class Program
{
public static void Main()
{
string? a = Console.ReadLine();
char b = a[0];
int c = Convert.ToInt32(b);

int F = c switch
{
>= 48 and <= 57 => 100,
>= 65 and <= 90 => 200,
>= 97 and <= 122 => 300,
_ => 400
};

Console.WriteLine(F);
Console.ReadKey();

Console.ReadKey();
}
}
10 changes: 10 additions & 0 deletions Seminars/Seminar04/Self/Task01/Task01.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
34 changes: 34 additions & 0 deletions Seminars/Seminar04/Self/Task02/Program.cs
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internal class Program
{
public static void Main()
{
string? data = Console.ReadLine();

int output = data.ToLower() /* Nintendo */ switch
{
"january" or "январь" => 1,
"february" or "февраль" => 2,
"march" or "март" => 3,
"april" or "апрель" => 4,
"may" or "май" => 5,
"june" or "июнь" => 6,
"july" or "июль" => 7,
"august" or "август" => 8,
"september" or "сентябрь" => 9,
"october" or "октябрь" => 10,
"november" or "ноябрь" => 11,
"december" or "декабрь" => 12,
_ => 0
};

if (output == 0)
{
Console.WriteLine("В году такой месяц отсутствует");
Console.ReadKey();
return;
}

Console.WriteLine(output);
Console.ReadKey();
}
}
10 changes: 10 additions & 0 deletions Seminars/Seminar04/Self/Task02/Task02.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
48 changes: 48 additions & 0 deletions Seminars/Seminar04/Self/Task03/Program.cs
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internal class Program
{
public static void Main()
{
Console.Write("Введите код операции: ");
bool code_flag = int.TryParse(Console.ReadLine(), out int code);

if (code == 0)
{
Console.WriteLine("Некорректно введено значение кода операции");
Console.ReadKey();
return;
}

Console.Write("Введите A: ");
bool a_flag = Single.TryParse(Console.ReadLine(), out float a);

if (a == 0)
{
Console.WriteLine("Некорректно введено значение A");
Console.ReadKey();
return;
}

Console.Write("Введите B: ");
bool b_flag = Single.TryParse(Console.ReadLine(), out float b);

if (b == 0)
{
Console.WriteLine("Некорректно введено значение B");
Console.ReadKey();
return;
}

switch (code)
{
case 1:
Console.WriteLine($"{a} + {b} = {a + b}"); break;
case 2:
Console.WriteLine($"{a} - {b} = {a - b}"); break;
case 3:
Console.WriteLine($"{a} * {b} = {a * b}"); break;
case 4:
Console.WriteLine($"{a} / {b} = {a / b}"); break;
}
Console.ReadKey();
}
}
10 changes: 10 additions & 0 deletions Seminars/Seminar04/Self/Task03/Task03.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

</Project>
Binary file modified Seminars/Seminar04/Self/images/Self01.JPG
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