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:172.69.214.39
©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