10-12 Exercise: A water supply company

1 like 0 dislike
17.3k views

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

 

[Exercise] Coding (C) - asked in Chapter 4: Expressions by (12.1k points)
ID: 26465 - Available when: Unlimited - Due to: Unlimited
edited by | 17.3k views

91 Answers

0 like 0 dislike 
Hidden content!
* * *  * *   * * * ** 
int main()
{
*  * * *  * * x,y;
   ** ****  * *    **  ***      * *** 
   *  *  *  *   **  *****  * *  ***  ***  * *
  {
 ****    ******** ****  ** * *  * *  ***  **  ***  **
  }
 * * *  *   ****  *  *   ** *   * * *   ******* 
  {
    ** * *   *  ***** * * **  **** ** **   ** 
  }
 *****  ** ** ** *  *   *   *  *  * ****  ** * **
  {
 * * * **** *****   ***  ***** * *    * **  * *    
***** *   **** *
* * *  **  *   * if(x>=60)
 *    * *  
     *** * **     **  *    *    * *    *   ** ** ***
  *  * * *   ** 
 *****  *   * *  **** *  *  **   %.2f",y);
 ** **     *    ** * * 0;
}
answered by (-255 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main(void)
{
    * **  * * *  ****** * ***** *  x,y;
** * **   *** *  ***  *    *** * * * **  * * * *
  ******   *    * ** * **   ***  (x<=30)

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

 ** **  *    * ** *  ** ** * if (x<=50)

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

*  * **   ** * * *** ** ** * if (x<=60)

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

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

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

* *  *  ********* *  *    *  * * *   ** * ** %.2f",y);
* ** * * ****   **       *       ** * 0;
}
answered by (-196 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
**  *  * * **       **  ***
#define FIXED_AMOUNT 10
int main()
{
 ** ** * **  *  *  * * **    x, first_30cb,   ** *****  ** next_10cb, add_metercb;
 *    ** ** *  ** *    *  *  *  *  ** * &x);
  ** * **  **  * *   (x<31)
* ** ** **** *** ***
****  **  **      ****  *    ***   * *  ** **   **   ***** *   = FIXED_AMOUNT + x*0.6;
** * * * **   ****   *  *  * *     **  * ** *** ** **** *  * * * **    *** *  * *   
  **** **  ******** 
* *****         *** * ** if (x<51)
  ***** *** **     *
   ***        * ** *  *   *  ***   ** *  ***   ******* = FIXED_AMOUNT + (x-30)*0.8 + 30*0.6;
***** **  * *  **    * *** * *** *       * *    *** * * **** * ** * * * 
****   **  **** *
   ** *     **  *   *** if (x<61)
*  **** * * ****** * 
* *** * ****      * * *  *  *  *  *** * *  **  *** ** *  *  = FIXED_AMOUNT + (x-20)*1 + 30*0.6 + 20*0.8;
* ****  **  ***    **      * *     ***  ****  ** ** *    * ** *   **** ** * *****
***  *    *** ****    *
**   * **  * *  **   
** **   *  *** ****  ***     ** 
     *  *     *    *  *         *  *** *   *    ** * * **** ** **  = FIXED_AMOUNT + (x-60)*1.2 + 30*0.6 + 20*0.8 + 10*1;
** ******   ** *  ***   *   **** ** **   **       ****** * ** **** **  *  ***************   *       *
 *  ** *   *   ** ****  **  ** 

* *  **   *  * *    ***    0;

}
answered by (-281 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
Case 4: Wrong output
commented
0 like 0 dislike 
Hidden content!
* *  *          *   **
#define FIXED_AMOUNT 10
int main()
{
   ** **   **   ***  x, first_30cb,    * *  **** next_10cb, add_metercb;
*** *   **   *   ** *    *****  ** **  *   &x);
    * *    *  *      * (x<31)
** *  * * **  ***  *   
 **  *       *****  ** ** ** *** * *  **** * * * *   *** = FIXED_AMOUNT + x*0.6;
 * * * * * ***        * *      **  ** *****  *  ** *        * ** ***  *      * ***** *** 
  ****   ** *   **   **
* * * ** ***  *   *** if (x<51)
 **    *** **** *  * *  * 
****   *  **  * *    ******  * *  *  **  *******  *  ** = FIXED_AMOUNT + (x-30)*0.8 + 30*0.6;
    *    *       * **        * ** *  ** *  **  * * *   **       ***** * **   * *
  ***   ** ***  **     
* * *   * **  ** ***  *  if (x<61)
******* ** ***   ***   *
*   **   * *  *   *  *   *** * *   ** * *** ***   *  *    = FIXED_AMOUNT + (x-20)*1 + 30*0.6 + 20*0.8;
 * **  **** **    * *  *** **  **  ** ******* ***** * **   * * *** *  *  * ***   ** ***
* * *  ** *** *       **
* ****   *  **   * ** ** 
  **** * *  *       * * *****
  ** **** * ***** *** *   *  ****       *  ** *** **  * *  = FIXED_AMOUNT + (x-60)*1.2 + 30*0.6 + 20*0.8 + 10*1;
 *** ******      * ***     * *      **  *   *    *** ** * *  **     *** *   *   *  
* *       * ** *     ** *  * 

*** *       *  *     *   * 0;

}
answered by (-281 points)
0 1
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
commented
0 like 0 dislike 
Hidden content!
   **** * **** *  * 
#define FIXED_AMOUNT 10
int main()
{
  *   **   ***  *** * *     x, first_30cb,  next_20cb, next_10cb,  ****    *   **** 
** **  * *** ** **    **** *        * &x);
* ***** ** ****   * ** (x<31)
*     * **** ** 
    *   *  * *   ***  *****   ***** ***   *** *  *** *   = FIXED_AMOUNT + x*0.6;
* **   *  * ** * * **** * *** * * *** *****   **** ** ** ** *** * * * ****** **  * 
  *** *  * * **     * 
****  * *   *** * * *     if (x<51)
*  *  *  ***** *   * **
  * **  **  ** * ***    * * ** *  *  **** * ***  * *  = FIXED_AMOUNT + (x-30)*0.8 + 30*0.6;
*  *  ****      * * ** ********* * ******    ** * *** * * ** * ****  *      **  **
  *** ** **    *  *  *
 ****  * *** **  * *  if (x<61)
    *** *** ****   * 
* **  * * ** ***** *** ** ***** * *    **   * ** *** = FIXED_AMOUNT + (x-20)*1 + 30*0.6 + 20*0.8;
 ***    *  ***** *    ***** *** *  ***    *  * * ** **  ** * * **** ** *    ** **   * *   
* **  ** *   ***  
*** *     * **  *** ***** 
   *            ** **** ***  *
**  *   *** *** **** ** *  * *  ** *     ** ****  * *  *   ** *  *   = FIXED_AMOUNT + (x-60)*1.2 + 30*0.6 + 20*0.8 + 10*1;
 * * **  * *       ****** **  ***** * **** *****  ***  *** *  **  *  ** *   *** ****   *  ***
**** **       **    *****  

*   **** *  ***   *** * 0;

}
answered by (-281 points)
0 0
prog.c: In function 'main':
prog.c:5:61: error: unused variable 'total_amount' [-Werror=unused-variable]
    float  x, first_30cb,  next_20cb, next_10cb, add_metercb,total_amount;
                                                             ^~~~~~~~~~~~
cc1: all warnings being treated as errors
commented
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main(void)
{
 ***** *   *   * ***    *  ***    * x,y;
  *  *  **  **  *** *** ****  **  ***   *    * *********   **
 **  ***  **  **********  * ** (x<=30)

 *  **    ****        ***       

 ** ** *  *  * * **    ** if (x<=50)

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

     * ** ***  *    * *** * ****** if (x<=60)

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

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

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

****  **  ** ** *****   **      * *  *    ***   
** *    * * *     ***  *  **  * * 0;
}
answered by (-196 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
commented
0 like 0 dislike 
Hidden content!
#include<stdio.h>

int main() {
   *   *** * *    * ******** * a;
*      * ** **** ** *       *    *   * *** &a);
* *   * *   ******   **  *  *  * * * * b;
    *** *  *  ***    *  *  ** * ** *  {
 *    **     * **     ** ** * ** *  **** *  ******   ** *
*     *** ** *    ** **   
 * *   ****  *   *** * *****  **  if(a> 30 && a<=50) {
*   * *****   * ***    **   * ***   **** *   **** * *     **** 
* *   *** **  ** *      ** *** 
  * *   **    *  * *   *  *****  ** * if(a>50 && a<=60) {
  *  ** ***  *  ***  * * ***   * * *       **  **  ** **      * 
 ** *** * * ***** * **   
** ****  * ** * *  *   * * * ** * if(a>60) {
 * *  *          **     **   *** * **    **  **     ** * **  *  **
 *        *** *       * *  *
 *    ** ******* * ** *** *      * *  *  %.2f", b);
}
answered
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
*  * ***   *     *      *    x,y;
** **   *     *  *  *  *  * *** ** **   *   *** * * *  *

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

 * *      *  **  ** ** * *  *  if(x > 30 && x<=50)
*****    **** *     ***    ** 
* **** *  * *** * ***  **** *   * 
  **  * *  * *  *    ******  ** *  
 ** **   ***    *  **     ** 

*  * *** * *  *  **     **** if(x>50 && x<=60)
    {
   *   ** * **  ***  *** *  **** 
*   **    *  *  * **  *  *  *    *  * * * ** *
    *  *  * * *   *   * * **  

*  * ****  * * **   *    * **
* *** *    *** **  ***********
**   ** *   **       * * ** 
** * ** *  *  *  * *    *** ** *    **  ** * *  *  
* **  *****    *   **   *** *
*  **** ******     *  ** **  * **   **  * %.2f",y);
*  *  * *********   *  ** * *   0;
}
answered by (54 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main (void)
{
  *  *   ***   * ***   * ** a;
*** **        **** * *******   *  * b;
**   *   * ** ** * *** **** * * * * ** * **   **  **
    **** ****  *  ****   *** * *  ***** **** * *    
*   *   * *******     **** **   *  *  *** *      * * 
    }
***  ******** *******  * *** ***  ***   *****  *****  *  *    **
***     * *****    *  **   *   *  *  **   *  * *** *   *  
    }
** *    **     *  *  * *  * *** **  * ** *  *  ** ***** *  ** 
  *     ******   * * * *   * * *** *** *     ****** *  *    *
    }
*  **** **     **** ** ** **  * *    *  
 * ***   ****  ** *  *  *       *  * * * * ***    **  **
*****  *   ** *** *****  **
    ** ***   **    ** ***** ** * **    %.2f",b);
 *  ** *  *  *** ****  ** *  0;
}
answered by (-204 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main (void)
{
***** * **    *  *   **  * ** a;
  * *    * *** ** * *    **  * b;
        ** *  *** *** ** *** *** **  *** * * *   * *******
  * * * *  ***  * * *  *  * **  * * ***********   * * *  *
*****  ***   *  ** **  * *  **    * **** ***  ** *** 
    }
*        ** ** * **  ** *  *** *  * **** *  **** *** *  **   * * *
*  *      ***** ****     * * **     * **  *    *    *      * **
 * * **   ******   * 
* ******* * *  * * **** *  *  ** *****     * *   ***  **  *  *  * *
*****  * *  *  *   ******* ** **   ** * *** * **
    }
  ****  *** * ** *   *****  *  *  
 *  *   *** * ** *** *   ****  ***       ** **  *        **
    }
* ***       * * * ***** * *      * * *** * * *** *  **
*   ***  *  * *  *****   ** *** **  0;
}
answered by (-204 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
commented
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.80.40
©2016-2025

Related questions

3 like 0 dislike
87 answers
10/12 Exercise: Complete a program with output format
[Exercise] Coding (C) - asked Oct 12, 2017 in Chapter 3: Formatted Input/Output by thopd (12.1k points)
ID: 26463 - Available when: Unlimited - Due to: Unlimited | 13.8k views
3 like 0 dislike
86 answers
10-05: A program that reads the exams result and displays the percentages.
[Exercise] Coding (C) - asked Oct 5, 2017 in Chapter 4: Expressions by thopd (12.1k points)
ID: 25730 - Available when: Unlimited - Due to: Unlimited | 12.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users