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 <stdio.h>
int main (void)
{
  *   * * **  **** * *  ***** a;
 ***   *  *  *  * * ****** *  b;
 *  *** ** **** *  *  *  ******  ** * **   ** ***  *
*  *  ***    * *   *** ******* * *****    ** * *** ** *****    *
  * * **** * ***  * *    **    *  ***** *** * *** **  * *
    }
*** *   *     *  * *    * *** **  * **** * * **  *  ******  
** *  *  *** ***   *    ** ** ******   ** * * *   *******  
* ******* ** *    * *  * 
 *  *** **** ****** ***** * *** ** * * ** ***  * **  ****  
** ** **   *  **** * * * *    **    * *** * * ****  *
    }
*   ** **  **  ****   **  ****  * ** *  * 
     * *  *       ** ****  **  **  **    * ***   
    }
** ** * *** ***  ***  *   **  *  **  
* *  *   ** **** *** ** * *****  0;
}

Comments

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

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
  *  ** ** * **   **   * ** * price=10,water;
***  *  ****  * *  *     **   *** **  * * * **   *
  *      **  * *   ***   *** ** ***
     ** * **  * *  * *** ***  * *** *  *  * **** ***    * * *  * *
    }
 *  ** *  ** *  ***  * **** * ***  * *** * *    *  **  *  * ** * 
*     *** ** * * **** *  *** * *   *     ** **  ** **     * ** ***** *******
    }
***   * ** *    ***** **      *  *** * * *         **   * *   
   *   *  **     ****  ** * **   *** *  *  ** * ***     * **   *  * ***   *   
    }
*  ** * *   * * * ** **      * if(water>60){
   ****   ** ** *****    ****   *        * * **     *  **   ***   * *    * ** * ****      
 * **  *******    ****  ***
        ** * * ** *  * *    ** * **  **     %.2f",price);
 **     * * ***  *    * * **   *   0;
}

Comments

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

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output

Answer 3

Hidden content!
#include <stdio.h>
int main()
{
******    *    **  * * *** ****   price=10,water;
  *  ***  *  *    *  **     * ***** ***   *   *  ****   * * *
*** * *    *  ** **  ***         *** **
*       * *** *   ***  *  * *    ***** * * *** * ** ** ******    
    }
*  **       * * *   **** *****     *  ****  * * * *** * **   ** *   
    **** * * *** *   * *  *  * ** **** *     ** *  *  **  *****  ***  ****
    }
*** * ***** *******  ***   ****  **** ***  ** ***   ***        
 *     *****  ** *******   * ** * **   * *  * *   ** ***   **** *  * * **  *
    }
* ** *** ** **  ****    *      if(water>60){
************ * *** ***** * * *  ** * ******* **      ******  ***  **  ***  ***
 * *   **    ****  **
** *    * **    **** **   * * **** *   **** %.2f",price);
** *  ****       **** **  0;
}

Comments

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

Answer 4

Hidden content!
#include <stdio.h>
int main()
{
*  ****   *      * *** *  price=10,water;
  *     * * *** * ***  *** *  * *** ** *** ** *****  
 **    **  ******* * *  * **  * * * 
** **** *  * * **  *  *****  ** ** ***     
  * **  *  * *   *  **** * *  ****   *  ** *     *   *  * * *****
    }
***** **  * *** * * * *  ***   * *** **** *   * **   **** *  *
 ***   *   * * * *** *    ** *    **   ***  *    **  **   ** **** *** ** *  * * 
    }
  ****** *   *   * * * ******** *       ** ** **** **   ** ****  * * *    
        *   * *  * * * * **   * *  ** ***   *     *  *   * **** **      ** **  
*** *    **  * * *   *******   
* *  * * ** **   *** **  *      if(water>60){
*  *     *  * *** *  * *   * **   **  *   **** *    **** ****** ** * *  *  **
    }
   **** * *** *******      ******* *   * **    %.2f",price);
*****     *   * *  *****  *    *  0;
}

Comments

prog.c: In function 'main':
prog.c:6:5: error: statement with no effect [-Werror=unused-value]
     water;
     ^~~~~
cc1: all warnings being treated as errors

Answer 5

Hidden content!
  **         *  * *******
 
***  *
*** * ** 
    ** * 

  

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



* *   **** * * 

   

**** *
*
 *
*

 * ***  * * *

   * 

 * * 



  



  *   *  

** *  

  * ***

  


**      **** *  

* **

 ** 

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

Comments

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

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output

Answer 6

Hidden content!
*   *     * *** * *** 

* *  *
* *     
 ** ***       

 

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



     * ***   * * 

  ****

     

*
 

  *    *  **

***** 
*
* ***



 



*   ** *        

 *  

** 

 


 *   **  *

 *****

 *  **
 
*
 ***
*

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

Comments

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

Answer 7

Hidden content!
 * *    * ****   *** 
*
 ** **    *  **** ** 
  *    
***  *  * *



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



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

 * ** *

  


     * * **        

  ***

  *  



  



**   **  * *

** 

 * 

 *


  * *  **    

 **

* * 

 
* * *


*  *  ***    * **   *      *
*
 

Comments

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

Answer 8

Hidden content!
 **   * *   ** * *

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

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



* ****   *

*   *

**   

 


 *   ****    

 

***  *



 



  ** * ** *  

*  *

  *** 

*


  **    * ****

* *  *
*
 *   *
 
* 
    **
 

**  *  ** * *     * *   

* 

Comments

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

Answer 9

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

int water_amount;
double price=10;

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

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

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

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

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

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

*  ** *  *  * *** ** *        * *   **  * %2.2f", price);
 **    *   *   *    * ** ***** **     0;
}

Comments

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

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output

Answer 10

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