compile c# online

Language: Layout:

//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            List<Impacts> ListOfImpacts = new List<Impacts>();
            ListOfImpacts.Add(new Impacts("a" , 1 , "b")); //record 1 
            ListOfImpacts.Add(new Impacts("c" , 1 , "d")); //record 2 
            ListOfImpacts.Add(new Impacts("d" , 1 , "a")); //record 3 
            ListOfImpacts.Add(new Impacts("d" , 1 , "a")); //record 4 
            ListOfImpacts.Add(new Impacts("d" , 1 , "a")); //record 5

var newList = ListOfImpacts.GroupBy(g => new {g.Source, g.Target})
                .Select(g => new Impacts(g.Key.Source, g.Count(), g.Key.Target))
                .ToList();

foreach(var item in newList)
            {
                Console.WriteLine("Source:{0}, Number:{1}, Target: {2}",item.Source,item.Number,item.Target);
            }

}
    }
    
    public class Impacts
    {
        public string Source { get; set; }
        public int Number { get; set; }
        public string Target { get; set; }
        public Impacts(string _Source, int _Number, string _Target)
        {
            this.Source = _Source;
            this.Number = _Number;
            this.Target = _Target;
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0.48 sec, absolute running time: 0.33 sec, cpu time: 0.17 sec, average memory usage: 25 Mb, average nr of threads: 5