求一个数组中三个最大值的下标

#include <iostream>
using namespace std;

int MaxNum[3]={0};

void sort(float b[],int NUM)
{
 int i=0;
 int j=0;
 float MaxTemp;
 
    int Record=0;
 while(j<3)
 {
  MaxTemp=b[0];
  Record=0;
  for(i=0;i<NUM;i++)
  {
   if(b[i]>MaxTemp)
   {
    Record=i;
    MaxTemp=b[i];
   }
  }
  b[Record]=0;
  MaxNum[j]=Record;
  j++;
 }
 
}

int  main()
{
 float a[5]={4.5,4.5,3.5,0.5,1.5};
 
 sort(a,5);
 
 for(int i=0;i<3;i++)
 {
  cout<<MaxNum[i]<<endl;
 }
 return 0;
}

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void PrintArray(float[] b)
        {
            int i = 0;
            int j = 0;
            float MaxTemp;
            float[] MaxNum = new float[3];

            int Record = 0;
            while (j < 3)
            {
                MaxTemp = b[0];
                Record = 0;
                for (i = 0; i < b.Length; i++)
                {
                    if (b[i] > MaxTemp)
                    {
                        Record = i;
                        MaxTemp = b[i];
                    }
                }
                b[Record] = 0;
                MaxNum[j] = Record;
                j++;
            }
           
            //打印数组元素，arr.Length 表示数组元素的个数
            for ( i = 0; i < 3; i++)
            {
                Console.WriteLine("MaxNum[{0}]={1}", i, MaxNum[i]);
            }

        }

        static void Main(string[] args)
        {
            float[] numbers = new float[5] { 4.5F, 4.5F, 5F, 1F, 2F };
            PrintArray( numbers);
        }
    }
}