10-12 Exercise: A water supply company

Question

A water supply company charges the water consumption, as follows:

a) Fixed amount of 10$.
b) For the first 30 cubic meters 0.6$/meter.
c) For the next 20 cubic meters 0.8$/meter.  
d) For the next 10 cubic meters 1$/meter.  
e) For every additional meter 1.2$/meter.   

Write a program that reads the water consumption in cubic meters and displays the bill.
寫一個輸入水的用量 輸出水費的程式

Example Input:

25

Output:

Cost: 25.00

Example Input 2:

44

Output:

Cost: 39.20

Example Input 3:
 

75

Output:

Cost: 72.00

 

Answer 1

Hidden content!
#include     **    ***** *
#include  * **** *** ** 

int water_amount;
double price=10;

int main()
{
   *  * ** ******** **   **   **  * *      *  *  ****** *** *  * 

*  *   * *** * *  * *****    * **     * ****** *** ***

* **  ***        * *** ****  * * **  *   *   **    **  * = price * **  *  *  *
   * *****  *  *** *   ** ** * * *   *  **** ******   **   **** * *  = water_amount - (water_amount - 60);
 * *   ** ** * *** *   *   *** *  
* *  * *      ****  ***   * ** ***   *** * ***

** *    **  ** * *   * *  ** * ** *   *   **** * **    *      * = price +(water_amount-50)*1;
*** ***    * *   * ** **** *    ** * ** *** * ** ** = water_amount - (water_amount - 50);
   **     *  **  * *** ** **
 *  *  **  * *   ****    ***  *  ** * *  *  *

 *  ******** *  ** *  * *****   ****    * **    **     *   *  = price  ***  *  * * *** *
 ***    **  * ***   * ***       **  ** * ** *  *   *    *  *  = water_amount - (water_amount - 30);
* ** *  * *  **  *  **             
****  ** * * * **  ** *** *  * *** *    **

*  ** ****   * *  *   *** **     **** *      *** ****  *   * = price +(water_amount*0.6);
  **  *******     *   *    **   * * * * ** *     ****      ** = water_amount - (water_amount - 30)
*** *  * **  *   * * * 

 ***   * **     **  * * * ****   * *      **   *  price);
** **  ** * *    * *   * *  **  *** 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

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Your output is not exactly the same with what the question asks you to do :)
Cost: 25.00

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Thanks!