turnin code cpp.hw1

1. 設計一個可以轉換西元年為民國年的程式
2. 檔名要求為AD2ROC.cpp
3. 程式執行結果參考:

[9:19 user@ws hw1] ./a.out
Please input year in AD: 2013
2013 AD is ROC 102.
[9:19 user@ws hw1] ./a.out
Please input year in AD: 1911
1911 AD is ROC 0.
[9:19 user@ws hw1] ./a.out
Please input year in AD: 2050
2050 AD is ROC 139.
[9:19 user@ws hw1]

1. 設計一個C++語言程式，讓使用者輸入矩形的長與寬(以cm為單位)，計算並輸出該矩形的面積。
2. 檔名要求為area.cpp
3. 程式執行結果參考:

[9:19 user@ws hw1] ./a.out
Please input the width: 5
Please input the height: 6 
The area is 5 x 6 = 30. 
[9:19 user@ws hw1] ./a.out
Please input the width: 10
Please input the height: 12 
The area is 10 x 12 = 120.
[9:19 user@ws hw1]