项目euler 60：代码问题 [英] Project euler 60: code problem

问题描述

<pre>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Prime_pair_sets
{
    class Program
    {
        static void Main(string[] args)
        {
            int mc = 5;
            List<int> primes = new List<int>();
            int test = 2;
            int count = 0;
            int test2 = 0;

            while(primes.Count < mc)
            {
                test = MyMath.Here.NextPrime(test);
                int a = 0;
                foreach(int el in primes)
                {
                    if(MyMath.Here.IsPrime(test*Convert.ToInt32(Math.Pow(10,el.ToString().Length))+el)&&             MyMath.Here.IsPrime(el*Convert.ToInt32(Math.Pow(10,test.ToString().Length)) + test))
                    {
                        a++;
                    }
                    else
                    {
                        break;
                    }
                }


                if(a == primes.Count)
                {
                    test2 = test;
                    primes.Add(test);
                    count++;
                }
            }

            foreach(int a in primes)
            {
                Console.WriteLine(a);
            }
        }
    }
}

如何检查所有可能的值和选择总和最小的一个？

代码NextPrime和IsPrime工作正常他们不是问题



我是什么尝试过：



我试图在示例中获得4个nuymbers。通过将代码中的mc更改为4，您可以获得这些数字。当它是5代码不起作用时...

How to check all possbile values and choose the one with smallest sum?
in the code NextPrime and IsPrime is working perfectly they are not a problem

What I have tried:

I have tried to get the 4 nuymbers in example .By changing 'mc' in code to 4 you can get that numbers. when it is 5 code is not working...

推荐答案

有一个工具可以让你看到你的代码在做什么，它的名字是调试器的。它也是一个很好的学习工具，因为它向你展示了现实，你可以看到哪种期望与现实相符。

当你不明白你的代码在做什么或为什么它做它做的时候，答案就是答案是调试器。

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。



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 [ ^ ]

在Visual Studio中调试C＃代码 - 您管 [ ^ ]



调试器在这里向您展示您的代码正在做什么，您的任务是与它应该做什么进行比较。

没有魔法调试器，它没有找到错误，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。

There is a tool that allow you to see what your code is doing, its name is debugger. It is also a great learning tool because it show you reality and you can see which expectation match reality.
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.

Debugger - Wikipedia, the free encyclopedia[^]

Mastering Debugging in Visual Studio 2010 - A Beginner's Guide[^]
Basic Debugging with Visual Studio 2010 - YouTube[^]
Debugging C# Code in Visual Studio - 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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