10-12 Exercise: A water supply company

1 like 0 dislike
24.7k 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 | 24.7k 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:162.159.115.10
©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 | 19.8k 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 | 18.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users