using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Hw1
{
class Program
{
static void Main(string[] args)
{
int year;
int month;
int day;
int select;
while (true)
{
Console.WriteLine("請輸入題號1~6來執行以下題目");
Console.WriteLine("第1題 阿姆斯壯數");
Console.WriteLine("第2題 判斷閏年");
Console.WriteLine("第3題 判斷天數");
Console.WriteLine("第4題 判斷星期幾");
Console.WriteLine("第5題 判斷日期是否合法");
Console.WriteLine("第6題 判斷日期相差天數");
Console.WriteLine("請輸入非1~6的數字來結束程式");
select = int.Parse(Console.ReadLine());
switch (select)
{
case 1:
//第1題 阿姆斯壯數
int a = 0;
int b = 0;
int c = 0;
double sum = 0;
Console.WriteLine("顯示100~999間的阿姆斯壯數");
for (int i = 100; i <= 999; i++)
{
a = i / 100;
b = i / 10 % 10;
c = i % 10;
sum = Math.Pow((double)a, 3) + Math.Pow((double)b, 3) + Math.Pow((double)c, 3);
if (sum == i)
Console.WriteLine("{0}", i);
}
break;
case 2:
//第2題 判斷閏年
Console.WriteLine("請輸入年分");
year = int.Parse(Console.ReadLine());
if (year % 4 == 0 && year % 100 != 0)
Console.WriteLine("{0}年是閏年", year);
else if (year % 400 == 0)
Console.WriteLine("{0}年是閏年", year);
else
Console.WriteLine("{0}這年不是閏年", year);
break;
case 3:
//第3題 判斷天數
Console.WriteLine("請輸入年分");
year = int.Parse(Console.ReadLine());
Console.WriteLine("請輸入月分");
month = int.Parse(Console.ReadLine());
if (month > 12)
Console.WriteLine("這不是月份，呆呆!");
else if (month == 2)//閏年2月有29天
{
if (year % 4 == 0 && year % 100 != 0)
Console.WriteLine("{0}年的{1}月有29天", year, month);
else if (year % 400 == 0)
Console.WriteLine("{0}年的{1}月有29天", year, month);
else
Console.WriteLine("{0}年的{1}月有28天", year, month);
}
else if (month % 2 == 0 && month >= 8)
Console.WriteLine("這個月有31天");
else if (month % 2 == 1 && month <= 7)//基數月有31天
Console.WriteLine("這個月有31天");
else
Console.WriteLine("這個月有30天");
break;
case 4:
//第4題 判斷星期幾
Console.WriteLine("請輸入年分");
year = int.Parse(Console.ReadLine());
Console.WriteLine("請輸入月分");
month = int.Parse(Console.ReadLine());
Console.WriteLine("請輸入日期");
day = int.Parse(Console.ReadLine());
int week;
//基姆拉爾森公式，需將1月和2月看成是上一年的13月和14月
if (month == 1 || month == 2)
{
month += 12;
year--;
}
week = (day + 2 * month + 3 * (month + 1) / 5 + year + year / 4 - year / 100 + year / 400 + 1) % 7;
switch (week)
{
case 1:
Console.WriteLine("這天星期一");
break;
case 2:
Console.WriteLine("這天星期二");
break;
case 3:
Console.WriteLine("這天星期三");
break;
case 4:
Console.WriteLine("這天星期四");
break;
case 5:
Console.WriteLine("這天星期五");
break;
case 6:
Console.WriteLine("這天星期六");
break;
case 0:
Console.WriteLine("這天星期天");
break;
}
break;
case 5:
//第5題 判斷日期合法與否
Console.WriteLine("請輸入年分");
year = int.Parse(Console.ReadLine());
Console.WriteLine("請輸入月分");
month = int.Parse(Console.ReadLine());
Console.WriteLine("請輸入日期");
day = int.Parse(Console.ReadLine());
if (day > 31 || month > 12)
Console.WriteLine("此日期不合法");
else if (day == 31 && month % 2 == 0)
{
if ((month == 8) || (month == 10) || (month == 12))
Console.WriteLine("此日期合法");
else
Console.WriteLine("此日期不合法");
}
else if (day == 31 && month % 2 == 1)
{
if ((month == 9) || (month == 11))
Console.WriteLine("此日期不合法");
else
Console.WriteLine("此日期合法");
}
else if (day >= 30 && month == 2)
Console.WriteLine("此日期不合法");
else if (day == 29 && month == 2)
{
if (year % 4 == 0)
{
if (year % 100 == 0 && year % 400 != 0)
Console.WriteLine("此日期不合法");
else
Console.WriteLine("此日期合法");
}
else
Console.WriteLine("此日期不合法");
}
else
Console.WriteLine("此日期合法");
break;
case 6:
//第6題 判斷日期相差天數
int sumYear = 0;
int sumDay1 = 0;
int sumDay2 = 0;
int day1;
int day2;
int monthDay;
int leapYear = 0;
Console.WriteLine("請輸入第一個日期:範例:20150210");
int inputDate1 = int.Parse(Console.ReadLine());
Console.WriteLine("請輸入第二個日期:範例:20150416");
int inputDate2 = int.Parse(Console.ReadLine());
int inputYear1 = inputDate1 / 10000;
int inputMonth1 = inputDate1 % 10000 / 100;
int inputDay1 = inputDate1 % 100;
int inputYear2 = inputDate2 / 10000;
int inputMonth2 = inputDate2 % 10000 / 100;
int inputDay2 = inputDate2 % 100;
for (day1 = 1; day1 < inputDay1; day1++) ;
for (day2 = 1; day2 < inputDay2; day2++) ;
//date1
if ((inputYear1 % 4 == 0 && inputYear1 % 100 != 0) || (inputYear1 % 400 == 0))//潤
{
for (month = 1; month < inputMonth1; month++)
{
if (month == 2)
monthDay = 29;
else if (month <= 8 && month % 2 == 1)
monthDay = 31;
else if (month <= 8 && month % 2 == 0)
monthDay = 30;
else if (month > 8 && month % 2 == 0)
monthDay = 30;
else
monthDay = 31;
sumDay1 = sumDay1 + monthDay;
}
}
else
{
for (month = 1; month < inputMonth1; month++)
{
if (month == 2)
monthDay = 28;
else if (month <= 8 && month % 2 == 1)
monthDay = 31;
else if (month <= 8 && month % 2 == 0)
monthDay = 30;
else if (month > 8 && month % 2 == 0)
monthDay = 30;
else
monthDay = 31;
sumDay1 = sumDay1 + monthDay;
}
}
sumDay1 = sumDay1 + day1;
//date2
if ((inputYear2 % 4 == 0 && inputYear2 % 100 != 0) || (inputYear2 % 400 == 0))//潤
{
for (month = 1; month < inputMonth2; month++)
{
if (month == 2)
monthDay = 29;
else if (month <= 8 && month % 2 == 1)
monthDay = 31;
else if (month <= 8 && month % 2 == 0)
monthDay = 30;
else if (month > 8 && month % 2 == 0)
monthDay = 30;
else
monthDay = 31;
sumDay2 = sumDay2 + monthDay;
}
}
else
{
for (month = 1; month < inputMonth2; month++)
{
if (month == 2)
monthDay = 28;
else if (month <= 8 && month % 2 == 1)
monthDay = 31;
else if (month <= 8 && month % 2 == 0)
monthDay = 30;
else if (month > 8 && month % 2 == 0)
monthDay = 30;
else
monthDay = 31;
sumDay2 = sumDay2 + monthDay;
}
}
sumDay2 = sumDay2 + day2;
//year
for (year = inputYear1; year < inputYear2; year++)
{
if (year % 4 == 0 && year % 100 != 0)//潤
{
leapYear++;
}
else if (year % 400 == 0)
{
leapYear++;
}
else
sumYear++;
}
sumYear = sumYear * 365 + leapYear * 366;
Console.WriteLine("{0}天", sumYear - sumDay1 + sumDay2 - 1);
break;
default:
return;
}
Console.ReadKey();
Console.Clear();
}
}
}
}
2015年3月26日 星期四
[2015][Homework]Team02 - Hw01 (Revised)
訂閱：
張貼留言 (Atom)
select 只有六個字母, 不宜使用簡寫
回覆刪除遵守一行只宣告一個變數的原則
回覆刪除