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using System;
using System.Collections.Generic;
using System.Linq;
using Graph;
namespace TSP
{
using Vertex = Vertex<Edge<double>, double>;
public class Tour
{
public List<City> Cities { get; set; } = new List<City>();
public double Weight
{
get => Cities
.Where(city => city.Parent != -1)
.Sum(city => city.Key);
}
// indexer: get vertex where vertex.Id == index
public City this[int index] { get => Cities.Find(vertex => vertex.Id == index); }
public Tour(List<Vertex> cities) => Cities.AddRange(cities.Select(city => new City(city)));
public Tour(List<City> cities) => Cities.AddRange(cities.Select(city => new City(city)));
public Tour() => Cities = new List<City>();
public Tour(Tour tour) : this(tour.Cities) { }
public override string ToString() =>
$"tour: {String.Join(" -> ", Cities.Select(city => city.Id))}\n" +
$"distance: {Weight}";
}
}
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