10-12 Exercise: A water supply company

1 like 0 dislike
21k 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 | 21k 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:108.162.241.33
©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 | 16.9k 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 | 15.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users