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