10-12 Exercise: A water supply company

1 like 0 dislike
19.7k 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 | 19.7k 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:172.69.214.38
©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 | 15.8k 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 | 14.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users