10-12 Exercise: A water supply company

1 like 0 dislike
26.8k 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 | 26.8k 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:104.23.243.109
©2016-2026

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 | 21.4k 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 | 19.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users