C ++二进制搜索树的bug，我怎么样呢？ [英] C++ binary search tree bug, how do I even?
问题描述
我有一个二进制搜索树，其中包含一些函数，不打算使用任何其他库，也不使用向量，我必须使用数组和树。这个代码大部分都可以工作，除了一个bug，对于某些根来说，添加数组的函数不起作用或者打印功能不起作用。基本上，如果您自己输入1，然后输入一个数组，那么大约有一半的数组会插入到树中。我不知道怎么做。如果我先尝试自己插入数字2，然后再插入一个数组就可以正常工作。 3号坏了，不知道是否有图案。
没有错误，编译好。预期输入：单独输入数字或作为数组，将它们全部添加到一个二叉树中。预期输出：打印树中包含阵列中所有添加的数字和单独添加的数字。
请帮助，我绝望，我不能为爱上帝找到了原因。
谢谢任何人的任何事情。
PS我对编码比较陌生，它可能看起来像垃圾，效率低下，这对我来说无关紧要，只要它有效并且我知道它是如何工作的。
数组 - C ++二进制搜索树错误 - 堆栈溢出 [ ^ ]
我尝试了什么：
试过调试，但我是新手而且让我更加困惑比帮助。试图将代码放在这里，但我编辑它很糟糕，所以我最后发布了stackoverflow并粘贴链接。
I have a Binary Search Tree, some functions in it, not planning to use any other libraries, nor use vectors, I have to use arrays and a tree. This code will mostly work, except for a bug, that for some roots, the functions that add arrays wont work or the printing functions wont work. Basically if you input a 1, on its own, and then input an array, about half of the array with be inserted into the tree. I have no idea how. If I try insert number 2 on its own first and then an array it works perfectly fine. Number 3 is broken, don't know if there's a pattern.
No errors, compiles fine. Expected input: input numbers alone or as an array, add them all to one binary tree. Expected output: print the tree with all the added numbers in the array and numbers added alone.
Please help, I'm desperate and I can't for the love of god find the cause of this.
Thank you anyone for anything.
P.S. I'm relatively new to coding, it might look like crap and be inefficient, that doesn't matter to me, as long as it works and I know how it works.
arrays - C++ Binary search tree bug - Stack Overflow[^]
What I have tried:
Tried debugging, but I'm a novice and it got me more confused than helped. Tried to put the code here, but I'm terrible at editing it, so I just ended up posting on stackoverflow and pasting the link here.
推荐答案
开发不是一个写它，编译它，修复编译器错误，编译它，发送它的情况 - 只是编译并不意味着你的代码是正确的！ ：笑：
将开发过程想象成编写电子邮件：成功编译意味着您使用正确的语言编写电子邮件 - 例如英语而不是德语 - 而不是电子邮件包含您的邮件想发送。
所以现在你进入第二阶段的发展（实际上它是第四或第五阶段，但你将在之后的阶段进入）：测试和调试。
首先查看它的作用，以及它与你想要的有何不同。这很重要，因为它可以为您提供有关其原因的信息。例如，如果程序旨在让用户输入一个数字并将其翻倍并打印答案，那么如果输入/输出是这样的：
Development is not a case of "write it, compile it, fix compiler errors, compile it, ship it" - just compiling does not mean your code is right! :laugh:
Think of the development process as writing an email: compiling successfully means that you wrote the email in the right language - English, rather than German for example - not that the email contained the message you wanted to send.
So now you enter the second stage of development (in reality it's the fourth or fifth, but you'll come to the earlier stages later): Testing and Debugging.
Start by looking at what it does do, and how that differs from what you wanted. This is important, because it give you information as to why it's doing it. For example, if a program is intended to let the user enter a number and it doubles it and prints the answer, then if the input / output was like this:
Input Expected output Actual output
1 2 1
2 4 4
3 6 9
4 8 16然后很明显问题出在将它加倍的位 - 它不会将自身加到自身上，或者将它乘以2，它会将它自身相乘并返回输入的平方。
所以，你可以查看代码和很明显，它在某处：
Then it's fairly obvious that the problem is with the bit which doubles it - it's not adding itself to itself, or multiplying it by 2, it's multiplying it by itself and returning the square of the input.
So with that, you can look at the code and it's obvious that it's somewhere here:
private int Double(int value)
{
return value * value;
}
一旦你知道可能出现的问题，就开始使用teh调试器找出原因。在你的行上设一个断点：
Once you have an idea what might be going wrong, start using teh debugger to find out why. Put a breakpoint on your line:
myaverage.DisplayAverage();
并运行你的应用程序。在执行代码之前，请考虑代码中的每一行应该做什么，并将其与使用Step over按钮依次执行每一行时实际执行的操作进行比较。它符合您的期望吗？如果是这样，请转到下一行。
如果没有，为什么不呢？它有何不同？
这是一项非常值得开发的技能，因为它可以帮助你在现实世界和发展中。和所有技能一样，它只能通过使用来改善！
所以试试看：在面对之前，学会在这样一个相对简单的例子中使用调试器在他离开公司的那天，别人写了200,000行代码中的一个错误！
and run your app. Think about what each line in the code should do before you execute it, and compare that to what it actually did when you use the "Step over" button to execute each line in turn. Did it do what you expect? If so, move on to the next line.
If not, why not? How does it differ?
This is a skill, and it's one which is well worth developing as it helps you in the real world as well as in development. And like all skills, it only improves by use!
So give it a try: learn to use the debugger on a relatively trivial example like this before you are faced with a bug in a 200,000 line lump of code someone else wrote the day he left the company!
没有错误，编译得很好。
No errors, compiles fine.
编译正常意味着你的代码是正确的C ++，并不意味着它做了它应该做的事情，因为没有错误意味着。
猫在天空飞得很高。是正确的英语语法，但是没有意义。
"Compiles fine" means that your code is correct C++, it does not mean that it does what it should as "no error" would mean.
"The cat is flying high in the sky.' is correct English grammar, but it is non sense.
尝试调试，但我是新手，它让我更困惑而不是帮助。
Tried debugging, but I'm a novice and it got me more confused than helped.
调试器是一个工具，就像任何工具，你需要学习如何使用它。
当你不明白你的代码在做什么或为什么它做它做的时候，答案是< b>调试器。
使用调试器查看代码正在执行的操作。只需设置断点并查看代码执行情况，调试器允许您逐行执行第1行并在执行时检查变量，这是一个令人难以置信的学习工具。
调试器 - 维基百科，免费的百科全书 [ ^ ]
掌握Visual Studio 2010中的调试 - 初学者指南 [ ^ ]
使用Visual Studio 2010进行基本调试 - YouTube [ ^ ]
调试器在这里向您展示您的代码正在做什么以及您的任务是与它应该做的比较。
调试器中没有魔法，它没有发现错误，它只是帮助你。当代码没有达到预期的效果时，你就会接近一个错误。
The debugger is a tool, and like for any tool, you need to learn how to use it.
When you don't understand what your code is doing or why it does what it does, the answer is debugger.
Use the debugger to see what your code is doing. Just set a breakpoint and see your code performing, the debugger allow you to execute lines 1 by 1 and to inspect variables as it execute, it is an incredible learning tool.
Debugger - Wikipedia, the free encyclopedia[^]
Mastering Debugging in Visual Studio 2010 - A Beginner's Guide[^]
Basic Debugging with Visual Studio 2010 - YouTube[^]
The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't find bugs, it just help you to. When the code don't do what is expected, you are close to a bug.
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