Solution8.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;

namespace cSharpSolutions
{
    internal class Solution8
    {
        public struct PointStruct
        {
            public double X, Y;
            public PointStruct(double x, double y) { X = x; Y = y; }
            public double DistanceFromOrigin() => Math.Sqrt(X * X + Y * Y);
        }

        public class PointClass
        {
            public double X, Y;
            public PointClass(double x, double y) { X = x; Y = y; }
            public double DistanceFromOrigin() => Math.Sqrt(X * X + Y * Y);
        }

        public static void Run()
        {
            Console.WriteLine("=== Solution 8: Struct vs Class Performance ===");

            const int iterations = 1000000;
            var sw = Stopwatch.StartNew();
            var pointsStruct = new PointStruct[iterations];
            for (int i = 0; i < iterations; i++)
                pointsStruct[i] = new PointStruct(i, i);
            sw.Stop();
            Console.WriteLine($"Struct allocation time: {sw.ElapsedMilliseconds} ms");

            sw.Restart();
            var pointsClass = new PointClass[iterations];
            for (int i = 0; i < iterations; i++)
                pointsClass[i] = new PointClass(i, i);
            sw.Stop();
            Console.WriteLine($"Class allocation time: {sw.ElapsedMilliseconds} ms");

            Console.WriteLine("\nSolution 8 complete");
        }
    }
}