Question

我有一个涉及模拟赛马并报告谁是第一，第二和第三的项目。我已经一路走来为每个距离测量制作一个随机数，无论哪匹马的总数最高。我无法将第一，第二和第三位置于右下方。我有一个数组的总数，我不太确定现在去哪里。

Console.Write ("Type 'Begin' to start the race. ");
string startRace = Console.ReadLine ();
if (startRace == "Begin")
{
    Console.Clear ();
    Console.WriteLine ("You may now begin the race.");
    Console.Clear ();
    int[] tot = new int[numberOfHorses];
    for (int i = 0; i < numberOfHorses; i++)
    {

        Console.Write (string.Format("{0, 10}: ", horseName[i]));
        int total = 0;
        for (int n = 1; n <= furlongs; n++)
        {
            int randomNum = rnd.Next (0, 10);
            Console.Write (" " + randomNum + " ");
            total = total + randomNum;
        }
        tot[i] = total;
        Console.Write (" |  " + total);
        Console.WriteLine (" ");
    }  //This is where I start to get unsure of myself.
    int firstPlace = Int32.MinValue
    for (int place = 0; place < numberOfHorses; place++) 
    {
        if (tot[place] > firstPlace)
            {
                firstPlace = tot[place];
            }

    }
}

'numberOfHorses'是用户决定参加比赛的马数，'horseName'是用户为每匹马命名的。谢谢。：）

Answer 1

您需要一个排序功能。而不是：

 int firstPlace = Int32.MinValue
 for (int place = 0; place < numberOfHorses; place++) 
 {
     if (tot[place] > firstPlace)
         {
             firstPlace = tot[place];
         }
 }

试试这个：

 int[] horseIndexes = new int[numberOfHorses];
 for (int place = 0; place < numberOfHorses; place++) 
 {
     horseIndexes[place] = place ;
 }

 // this is the sorting function here 
 // (a,b) => tot[b] - tot[a]
 // it will sort in descending order
 Array.Sort(horseIndexes, (a,b) => tot[b] - tot[a]);

 for (int place = 0; place < horseIndexes.Length && place < 3; place++) 
 {
     Console.WriteLine("place: " + (place+1));
     Console.WriteLine("horse: " + horseName[horseIndexes[place]);
     Console.WriteLine("total: " + tot[horseIndexes[place]);
 }

使用LINQ表达式有更好的方法，但希望这个例子是最容易理解的。

Answer 2

Emerald King应该已经知道如何在列表中找到最高的数字。取出最顶部的数字（将其设置为0）然后重复该过程以找到第二个，并再次找到第三个。

赛马控制台应用程序。模拟 - C＃

2 个答案: