10-12 Exercise: A water supply company

1 like 0 dislike
24.1k 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 | 24.1k 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:104.23.197.94
©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 | 19.1k 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 | 17.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users