Объяснения:
Описаны три класса: Student [Базовый], MaleStudent, FemaleStudent.
Реализована логика расчета стипендии, учтена возможность смены параметров студентами (в том числе и пола).
Код:
using System;
namespace Durka
{
class Program
{
static void Main(string[] args)
{
var male = Student.CreateMaleStudent("Cidodzy Ohlazhdai Blackjackovich", "1GT-b", 5f);
var female = Student.CreateFemaleStudent("Viktoria Nya Victorovna", "1ZT-b", 4.8f);
Console.WriteLine(male.GetPaymentAmount());
Console.WriteLine(female.GetPaymentAmount());
}
}
/// <summary>
/// Class which describes students in general
/// </summary>
public abstract class Student
{
public string Names { get; set; }
public string Group { get; set; }
public float MeanGrade {
get => _meanGrade;
set
{
if (value > 5f || value < 0f)
{
throw new ArgumentException("MeanGrade must be in [0; 5] range");
}
_meanGrade = value;
}
}
private float _meanGrade;
/// <summary>
/// Method for calculating amount of students payment depending on inner class params such as sex, etc.
/// </summary>
/// <returns>double</returns>
public abstract double GetPaymentAmount();
/// <summary>
/// Method for changing current sex to Male
/// </summary>
/// <returns>MaleStudent class object</returns>
public abstract MaleStudent changeSexToMale();
/// <summary>
/// Method for changing current sex to Female
/// </summary>
/// <returns>FemaleStudent class object</returns>
public abstract FemaleStudent changeSexToFemale();
public static MaleStudent CreateMaleStudent(string names, string group, float meanGrade)
{
return new MaleStudent(names, group, meanGrade);
}
public static FemaleStudent CreateFemaleStudent(string names, string group, float meanGrade)
{
return new FemaleStudent(names, group, meanGrade);
}
/// <summary>
/// Class which describes Male students
/// </summary>
public class MaleStudent : Student
{
protected internal MaleStudent(string names, string group, in float meanGrade)
{
Names = names;
Group = group;
MeanGrade = meanGrade;
}
public static float mul = 2000f;
public override double GetPaymentAmount()
{
return MeanGrade > 4 ? mul : 0;
}
public sealed override MaleStudent changeSexToMale()
{
return this;
}
public sealed override FemaleStudent changeSexToFemale()
{
return new FemaleStudent(Names, Group, MeanGrade);
}
}
/// <summary>
/// Class which describes Female students
/// </summary>
public class FemaleStudent : Student
{
protected internal FemaleStudent(string names, string group, in float meanGrade)
{
Names = names;
Group = group;
MeanGrade = meanGrade;
}
public static float mul = 500f;
public override double GetPaymentAmount()
{
return mul * MeanGrade;
}
public sealed override MaleStudent changeSexToMale()
{
return new MaleStudent(Names, Group, MeanGrade);
}
public sealed override FemaleStudent changeSexToFemale()
{
return this;
}
}
}
}
Только первых три
Задача 1:
var p: array[1..10] of integer;
i:integer;
count:integer;
begin
for i:=1 to 10 do read(p[i]);
write('Сколько цифр массива хотите видеть? -> ');
readln(count);
for i:=1 to count do write(p[i]:3);
end.
Задача 2:
var arr: array[1..10] of integer;
i:integer;
s:integer;
count:integer;
begin
for i:=1 to 10 do
begin
arr[i]:=Random(-10,10);
if(arr[i]<0) then
begin
writeln(arr[i]:4);
s:=s+arr[i];
count:=count+1;
end;
end;
writeln('Среднее значение = ', s/count);
end.
Задача 3:
var arr: array[1..10] of integer;
i:integer;
crat:integer;
id:integer;
begin
for i:=1 to 10 do
begin
read(arr[i]);
crat:=arr[i] mod 3;
if(crat = 0) then
begin
id:=arr[i];
if(arr[i] = id) then writeln('Id = ', i:2);
end;
end;
end.