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!