using System;
using System.Collections.Generic;
class Point
{
public int X { get; }
public int Y { get; }
public Point(int x, int y) {
X = x;
Y = y;
}
// Override Equals
public override bool Equals(object obj) {
if (obj is Point other) {
return X == other.X && Y == other.Y;
}
return false;
}
// Override GetHashCode
public override int GetHashCode() {
return HashCode.Combine(X, Y);
}
// Override ToString
public override string ToString() {
return $"({X}, {Y})";
}
}
class Program
{
static void Main()
{
var dict = new Dictionary<Point, string>();
dict[new Point(2, 7)] = "A";
dict[new Point(3, 6)] = "B";
dict[new Point(0, 0)] = "C";
// Print x and y separately
foreach (var entry in dict) {
Point key = entry.Key;
string value = entry.Value;
Console.WriteLine($"x: {key.X}, y: {key.Y} => {value}");
}
}
}
/*
run:
x: 2, y: 7 => A
x: 3, y: 6 => B
x: 0, y: 0 => C
*/
