using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication4
{
    public partial class Form1 : Form
    {
        List<string> names = new List<string>();
        List<double> distance = new List<double>();

        public Form1()
        {
            InitializeComponent();
        }

        void AddToListBox()
        {
            listBox1.Items.Clear();
            for (int i = 0; i < names.Count; i++)
            {
                listBox1.Items.Add(names[i] + "  " + distance[i]);
            }

        }

        private void button3_Click(object sender, EventArgs e)
        {
            names.Add(textBoxNames.Text);
            distance.Add(Convert.ToDouble(textBoxDistance.Text));
            AddToListBox();
            textBoxDistance.Text = "";
            textBoxNames.Text = "";
        }

        private void buttonFurthest_Click(object sender, EventArgs e)
        {
            double furthest = 0.0;
            string calnames = "";
            for (int x = 0; x < distance.Count; x++)
            {
                if (distance[x] > furthest)
                {
                    furthest = distance[x];
                    calnames = names[x];
                }
            }
            MessageBox.Show("The person who lives the furthest away from college is " + calnames);
        }

        private void buttonNearist_Click(object sender, EventArgs e)
        {
            double nearist = Double.MaxValue;
            string caznames = "";
            for (int x = distance.Count -1; x >= 0; x--)
            {
                if (distance[x] <= nearist)
                {
                    nearist = distance[x];
                    caznames = names[x];
                }
            }
            MessageBox.Show("Nearist " + nearist + " (" + caznames + ")");
        }

        double CalcualteRange()
        {
            double result = distance.Max() - distance.Min();
            return result;
        }

        private void buttonRange_Click(object sender, EventArgs e)
        {
            double nearist1 = Double.MaxValue; //min
            for (int x = distance.Count - 1; x >= 0; x--) {
                if (distance[x] <= nearist1) {
                    nearist1 = distance[x];
                }
            }

            double farthest1 = 0; //max
            for (int x = 0; x < distance.Count; x++) {
                if (distance[x] >= farthest1) {
                    farthest1 = distance[x];
                }
            }

            double range = CalcualteRange();
            MessageBox.Show(string.Format("Max: {0}\nMin: {1}\nRange: {2}", farthest1, nearist1, range));
        }
    }
}