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!