LINQ

using System;
//Za koriscenje LINQ potrebno je koristiti System.Linq namespace
using System.Linq;
using System.Collections.Generic;
public class Program
{
    public class Person{
        public string firstName,lastName;
    }

    public class PersonAndWork{
        public Person person;
        public string workPlace;
    }

    public static void Main()
    {
        List<PersonAndWork> list = new List<PersonAndWork>(){
            new PersonAndWork(){person = new Person(){firstName = "Elon", lastName = "Musk"}, workPlace = "Tesla"},
            new PersonAndWork(){person = new Person(){firstName = "Larry", lastName = "Page"}, workPlace = "Alphabet"},
            new PersonAndWork(){person = new Person(){firstName = "Satya", lastName = "Nadella"}, workPlace = "Microsoft"},
            new PersonAndWork(){person = new Person(){firstName = "Petar", lastName = "Petrovic"}, workPlace = "DressCode"},
            new PersonAndWork(){person = new Person(){firstName = "Petra", lastName = "Jovanovic"}, workPlace = "DressCode"},
        };

        //Trazimo autore koji rade u DressCode-u
        var result = from s in list
                    where s.workPlace == "DressCode"
                    select s.person;
        //Na ekranu ce se ispisati Petar Petrovic i Petra Jovanovic
        foreach(var author in result)
            Console.WriteLine($"{author.firstName} {author.lastName}");

    }
}