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