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:172.70.38.222
©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