10-12 Exercise: A water supply company

1 like 0 dislike
18.6k 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 | 18.6k 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:172.69.214.204
©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 | 15.3k 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 | 13.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users