using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
class Employee
{
public string Name { get; set; }
public decimal Salary { get; set; }
}
class Department
{
public string Name { get; set; }
List employees = new List();
public IList Employees
{
get { return employees; }
}
}
class Company
{
public string Name { get; set; }
List departments = new List();
public IList Departments
{
get { return departments; }
}
}
class SalaryReport
{
static void Main()
{
var company = new Company
{
Name = "A",
Departments =
{
new Department
{
Name = "Development",
Employees =
{
new Employee { Name = "T", Salary = 75000m },
new Employee { Name = "D", Salary = 45000m },
new Employee { Name = "M", Salary = 150000m }
}
},
new Department
{
Name = "Marketing",
Employees =
{
new Employee { Name = "Z", Salary = 200000m },
new Employee { Name = "X", Salary = 120000m }
}
}
}
};
var query = company.Departments
.Select(dept => new { dept.Name, Cost = dept.Employees.Sum(person => person.Salary) })
.OrderByDescending(deptWithCost => deptWithCost.Cost);
foreach (var item in query)
{
Console.WriteLine(item);
}
}
}