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POReverse a single chained List
 

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    <p>I hope I am using the right terminology. I have made a single-chained list.</p> <pre><code>class MyStack { public Node Initial { get; set; } public MyStack() { Initial = null; } public void Push(int data) { var node = new Node { Data = data, Next = Initial }; Initial = node; } public int Pop() { int res = Initial.Data; Initial = Initial.Next; return res; } public int Sum() { int sum = 0; Node currentNode = Initial; while (currentNode != null) { sum += currentNode.Data; currentNode = currentNode.Next; } return sum; } public int Count() { int count = 0; Node currentNode = Initial; while (currentNode != null) { count++; currentNode = currentNode.Next; } return count; } public void PrintAll() { Node currentNode = Initial; while(currentNode != null) { Console.WriteLine("tmp.Data = " + currentNode.Data); currentNode = currentNode.Next; } } } public class Node { public int Data; public Node Next; } </code></pre> <p>Meaning you can do something like this:</p> <pre><code> var s = new MyStack(); s.Push(5); s.Push(3); s.Push(7); s.PrintAll(); Console.WriteLine("Sum: " + s.Sum()); Console.WriteLine("Count: " + s.Count()); </code></pre> <p>Now, I want to try and make a Reverse method. This seems to be working:</p> <pre><code>public void Reverse() { Node predesesor, location; location = Initial; predesesor = null; while(Initial != null) { Initial = Initial.Next; location.Next = predesesor; predesesor = location; location = Initial; } Initial = predesesor; } </code></pre> <p>I am hardly able to see how it works, and it will be tough to maintain. It seems more like a hack than anything else.</p> <p>Can you offer any assistance?</p>
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    1. COBy the way, what happens if you try to pop without pushing? You may want to put a check there.
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    2. COYeah I know :) This is more a personal exercise, so I can archive more deep knowledge of how these things work. It is not something I will use in production code :)
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