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:104.23.243.108
©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