Problem: https://www.codewars.com/kata/551f23362ff852e2ab000037

Pyramid Slide Down.cs

using System;
using System.Collections.Generic;

public class PyramidSlideDown
{
	public static int LongestSlideDown(int[][] pyramid)
	{
		var cache = new Dictionary<string, int>();
		return LongestSlideDownAt(pyramid, 0, 0, cache);
	}

	private static int LongestSlideDownAt(int[][] pyramid, int x, int y, Dictionary<string, int> cache)
	{
		if (x >= pyramid.Length || y >= pyramid[x].Length)
		{
			return 0;
		}

		if (x == pyramid.Length - 1)
		{
			return pyramid[x][y];
		}

		string key = $"{x}:{y}";
		if (cache.ContainsKey(key))
		{
			return cache[key];
		}

		int max = int.MinValue;
		for (int i = 0; i < 2; i++)
		{
			int tmp = LongestSlideDownAt(pyramid, x + 1, y + i, cache);
			if (tmp > max)
			{
				max = tmp;
			}
		}

		cache[key] = pyramid[x][y] + max;
		return cache[key];
	}
}

ماهو الالجوريزم الذي تم استخدامه؟

https://github.com/AhmedElMetwally/javascript/blob/master/longestSlideDown.js
بالجافا سكريبت