[用C＃编写程序，该程序使用迭代二进制搜索算法使用其姓名搜索年龄

Question

这需要分割包含年龄和姓名的数组，然后对name变量执行搜索操作，如果数组中存在姓名，则最后打印年龄。

到目前为止，我只创建了一个2D数组，但不知道如何拆分然后执行搜索

String[,] arr = { { "aakif", "25" }, {"ali", "31"} , {"ben","35"}, {"hassnain" ,"45" } };

Answer 1

我确实不同意您存储输入的方式，但是您可以通过以下方式实现搜索：

String[,] arr = new string[2,4];
arr[0, 0] = "saif";
arr[0, 1] = "25";
arr[0, 2] = "ali";
arr[0, 3] = "17";
arr[1, 0] = "aakif";
arr[1, 1] = "11";
arr[1, 2] = "hassnain";
arr[1, 3] = "50";

int index = -1;
int jindex = -1;
for ( int i =0 ; i <arr.GetLength(0) ; i++) {
    for ( int j =0 ; j <arr.GetLength(1) ; j++) {
        if (arr[i,j]== "ali")   {
            index = i;
            jindex = j;
            break;
        }

    }
}

if ( index != -1) {
    Console.WriteLine(arr[index,jindex] + " " + arr[index,jindex +1 ]);
}
else Console.WriteLine("Not Found");

Answer 2

using System;

namespace ConsoleApp
{

  static partial class Program
  {

    static void Main(string[] args)
    {
      Test();
      Console.WriteLine();
      Console.WriteLine("End.");
      Console.ReadKey();
    }

    static void Test()
    {
      string[,] arr = 
      { 
        { "aakif", "25" }, 
        { "ali", "31" }, 
        { "ben", "35" }, 
        { "hassnain", "45" }
      };
      string search = "ali";
      string age = arr.GetAge(search);
      if ( age != null )
        Console.WriteLine($"{search} age = {age}");
      else
        Console.WriteLine($"{search} not found");
    }

    static string GetAge(this string[,] array, string name)
    {
      for ( int index = array.GetLowerBound(0); index <= array.GetUpperBound(0); index++ )
        if ( array[index, array.GetLowerBound(1)] == name )
          return array[index, array.GetUpperBound(1)];
      return null;
    }

  }

}

输出：

ali age = 31

Answer 3

在数组[0,0]的第一个索引中，如果要寻找[Index，1]并打印年龄值，则为[1,0]。

string[,] arr = { { "aakif", "25" }, { "ali", "31" }, { "ben", "35" }, { "hassnain", "45" } };
        string search = "ali";
        for (int i = 0; i < arr.GetLength(0); i++)
        {
            if (arr[i,0].ToString() == search)
            {
                Console.WriteLine(arr[i, 0] + " " + arr[i, 1] + " years old");
            }
        }