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!