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:172.70.111.115
©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