// 实验小结 吴新强于2013年3月20日0:19:08 桂电 2507实验室
// 贪心算法解决找零钱问题 这里用的是人民币（）
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace Greedy_Algorithm
{
class Program
{
static void Main()
{
double origAmount = 0.36; //给了100百，需要找63块的算法（假设不存在几分的）
double toChange = origAmount * 100;
double remainAmount = 0.0;
int[] coins = new int[6];
MakeChange(origAmount, remainAmount, coins);
Console.WriteLine("提示：请输入小于100元的值，找零大于100是没意义的！");
Console.WriteLine();
Console.WriteLine("最优找零方法如下：" + toChange);
Console.WriteLine();
//origAmount = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("找零的人民币是: ");
Console.WriteLine();
ShowChange(coins);
}
static void MakeChange(double origAmount, double remainAmount, int[] coins)
{
if ((origAmount % 0.5) < origAmount)
{
coins[8] = (int)(origAmount / 0.5);
remainAmount = origAmount % 0.5;
origAmount = remainAmount;
}
if ((origAmount % 0.2) < origAmount)
{
coins[7] = (int)(origAmount / 0.2);
remainAmount = origAmount % 0.2;
origAmount = remainAmount;
}
if ((origAmount % 0.1) < origAmount)
{
coins[6] = (int)(origAmount / 0.1);
remainAmount = origAmount % 0.1;
origAmount = remainAmount;
}
if ((origAmount % 0.05) < origAmount)
{
coins[5] = (int)(origAmount / 0.05);
remainAmount = origAmount % 0.05;
origAmount = remainAmount;
}
if ((origAmount % 0.02) < origAmount)
{
coins[4] = (int)(origAmount / 0.02);
remainAmount = origAmount % 0.02;
origAmount = remainAmount;
}
if ((origAmount % 0.01) < origAmount)
{
coins[3] = (int)(origAmount / 0.01);
remainAmount = origAmount % 0.01;
}
if ((origAmount % 0.005) < origAmount)
{
coins[2] = (int)(origAmount / 0.005);
remainAmount = origAmount % 0.005;
}
if ((origAmount % 0.002) < origAmount)
{
coins[1] = (int)(origAmount / 0.002);
remainAmount = origAmount % 0.002;
}
if ((origAmount % 0.001) < origAmount)
{
coins[0] = (int)(origAmount / 0.001);
remainAmount = origAmount % 0.001;
}
}
static void ShowChange(int[] arr)
{
if (arr[8] > 0)
Console.WriteLine("50元的人民币: " + arr[8] + "张 ");
if (arr[7] > 0)
Console.WriteLine("20元的人民币: " + arr[7] + "张");
if (arr[6] > 0)
Console.WriteLine("10元的人民币: " + arr[6] + "张");
if (arr[5] > 0)
Console.WriteLine("5元的人民币: " + arr[5] + "张");
if (arr[4] > 0)
Console.WriteLine("2元的人民币: " + arr[4] + "张");
if (arr[3] > 0)
Console.WriteLine("1元的人民币: " + arr[3] + "张");
if (arr[2] > 0)
Console.WriteLine("5角的人民币: " + arr[2] + "张");
if (arr[1] > 0)
Console.WriteLine("2角的人民币: " + arr[1] + "张");
if (arr[0] > 0)
Console.WriteLine("1角的人民币: " + arr[0] + "张");
}
}
}
}