10-12 Exercise: A water supply company

1 like 0 dislike
24.7k 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 | 24.7k views

91 Answers

0 like 0 dislike 
Hidden content!
#include <stdio.h>

int main(){

    float a,b,c,d,e;

 *    *  *  ** *****  * **  *  * **     *       **  * ***  
 **** *      *   ** *** ****  *** ** 
  *  ** *  **  *********    ** ***       *
    *  ** ** *****  *  * * * ** 
 ***  **  ******  **  ********   *** * **   

* **** * ****** * ** * **  *** ******* * *  * ** * **  * * 
*** ** * *** ****   *  *** ** ***     *  ** *** ** * *   * * * ****     *   ** 

  **    **  *  *  *    * * *  *  ******   ** ** ** ** && a>30){
 ** * * **   *     *     * * ****  ***   ****  **** *** **   *     *** ** *

** ** * *** ***     * *  * *********     *               && a>50){
   * *  * ** *       **  *    * * ***  ****  ***   * * * *    ** **    * *  **  * ** *    **  **

   *     *   * ****  *   **       ****   **    **       ***   
*** **** *         ** **  *** * ** *** *        ** ** * **** *** * **  *










    return 0;



}
answered by (-301 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>
#include <stdlib.h>

int main()
{
* **** * * *** * *** ** *** * * * a;
** *  **   ***  *** *   * *  **   * * **** ** *   *  **  ** 
**** ***    * ***  * *  **  ***  * 
 **    *** *    * *  **       *****   * **  * * *  **** * * *  * %.2f",a*0.6+10);
*   **   * *  ** **  ** * *    *  if(a<=50)
**  * *   *   * ***** *   *  *****   *  *        ** * **       * * **  *    %.2f",(30*0.6)+(a-30)*0.8+10);
**  **   **  **  ***   *  * * *     if(a<=60)
** * *  * **   * ** *  *       * **** ** ****  **  ***     ***  * *** ***** * ** **** ***   ** 
  *    **  * *   * ** 
*  ***** **** * **    *****    ****   *****  * ***  * * ******  ** * **   **    *    **        *   ****  **  
  *  * **   * *   ***  *   0;
}
answered by (-258 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 ** *    **    ** 

int main ()

{
* * ********   * *  ** ** * * userinput, a, b, c, extra;

    *    *  * * * * * *    ** **** * ** * * *  * &userinput);
 * *    *   * ***    * ** * (userinput<31)
*    * *    * * ***  * ***
    * ***  ****     * **** * * *   *  * * *  **** *     = userinput * 0.6;
**** * ****  ***  * * ** * **** * *   * * *  *  **** * ** * ** *   ***    %.2f", a+10);
 ***    **     * *  **
  * *   **  *     **    **  if (userinput<51)
   **  *  * **    ****   * ** ***
 *    ***   ***** ****      **  **         ******* *** * * *  = (userinput - 30)*0.8+30*0.6;
  * *** ** ***  * * ** ** **  *  ** ** * ****** * ******* * * * * **** %.2f", b+10);
    * ****  ****  * ****   *
*   *   * ** * **** ** ****   if  * ****** *  * 
* **  *  ** **  *** * *****  * 
***   **  *** ****  *** ****** *** *  * *    *   ***  * = (userinput - 50)*1+30*0.6+20*0.8;
** *** * **  **** *     ** ** * * **** **** ****       **  *  * * %.2f", c+10);
  * ****   *** ** *    ***     
 ** * * ***   **** **** * * 
* *   * **  ** **** * ***  *   
   ***** *   *   *** *    *   * ** ****  **   * ** *****  *** = (userinput -  ******* * *****
 *** **** ***  ***** * * * *   **   ** ***      *** ***  **   **      *   %.2f", extra+10);
  * *****    * **** * *  ***  


 **** * ** ********  ** * **  0;

}
answered by (-249 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: 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(){

    float a,b,c,d,e;

 *   * **** * * *  * *   **   *** * * * *   ***
*** *  *  ****  ****   *****  **  *  
*** * *  ******  *  **** ***  *  ******  *** 
  **  ** * *  *** *       **  * ***
 * **  * *   *  *    *  * ** *   ** *

 ***  *   *** **  ***   * ****   ** * *  **  ***** ****  **  
* * **** *    * **  **** ** ** **   *   *** ***** ** ****    ** * *  * **  

* *   ****  * * * **  *****     * *    ****     * ***** *** && a>30){
 ***  * *****    * * *    * *  * ** ****     *    * *  *** *** *** * *  

**   **  ***  * * ** **   ** **  *     ***  *  * **  *   *  * *  && a>50){
* *** * *** **    **  ****  *     *     ** **  ***     * **   ** *****   *

          * *  **  ** ** ***  ** ****     *  *  ** * ****
* ** * ******  * **     *  *  *   * * * ** * **  *   * *  *****  ** *** **   










    return 0;



}
answered by (-301 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>
#include <stdlib.h>

int main()
{
*  * ***   * * ** ****** ** *** a;
** **   * ******  * *  *   *    **  *    *  **** ** 
******    ***   **** * **  *    ***  ****** 
* ***  *  **  ** * *** ** **    *    *  *** *     *** ** ** *  **     *  * * ** ** *  *  * **  
    else if(a<=50)
 * *   ******* ***  *  ****   *     *  * ** *   *  ***           *** * *  ** **** * * **  *  * *
** **  * ****   **** * * * * if(a<=60)
  ** **  **  * *    *   * * *****      ***    **** *  ****  * ***    * *** **    * *** *   
**      **  *  **  **  *   ** ** *   
****   * ** * *    *  * *  ** **  ** **  *** *   *****  *** **** *** ***  ** **    *** *****  * ***   * * * * *  ** 
*   **  *  ***    **  * ***  ****   0;
}
answered by (-258 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!
** * *        ** 

 **     ***   ***  *



int main()

{
 **    *  ** *   * *  **  *   * total = 0;

 **  *   *** *  ** ****     * * amount = 0;

  * *    *** ** *** * *   *   * * * ***   *  ****  *  ***

* *   *** *  ****  **  * * amount *** * 30 )
  * * * *   ** *     *  **
   ** *  * ** *  *   * ****  * *   *****  **** * *  ** * = amount * 0.6 + 10;
 ****  *** **** * **  ***** 

 ****** *** ****   *  *** if( amount *    * 50 )
 *  * ***   * **** * ***  *
 ******  ****  ******* * *** *    * ** ***   **** ** *  ** = 10 + 30 * 0.6 + ( amount - 30 ) * 0.8;
 * ***   **** * ** *  ***

 ** *    * *    ***   * *     if( amount  **  60 )
 * ***** *  ** *   *** * ** 
 *** ******** ******* **  *******    * * *   **  *  **   ** * = 10 + 30 * 0.6 + 20 * 0.8 + ( amount - 50 );
   * **  *    ** **** * *  *

  *  ** ** *  * ** ***** * ****
  ** * *  **  * ***** *  *
* ** ****   *   ****  * ** *  * *  *  *   *   *** *****   *  = 10 + 30 * 0.6 + 20 * 0.8 + 10 * 1 + ( amount - 60 ) * 1.2;
  * ***** * *** *  * ** *

   **  **** ** * ****  **  * **** *** * *   * *  * ***** *** 
**     *** * ** * *  *   **  ****   0;

}
answered by (-285 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: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Wrong output
Case 4: Wrong output
commented
0 like 0 dislike 
Hidden content!
 * * * ****   ********* * 

*     ** *   **  *        



int main()

{
 *  ** ** ** ** ****    ****   total = 0;

* *  *  ***** **  ***      *****   ** += 10;

* *** *   *  **    * **  *   ** amount = 0;

**  *  * *  **     * *   *** *   *** ******  * *** *     * *  

*   **  ***  ** ***  ***  ** **** amount * *** 30 )
  *  * *   **   * **** **  **** 
 * ** **    * **  * ***** *****    * ** ** * *** * * = amount * 0.6 + 10;
  * **  ***   *  *  **  *****

** *   *   **   * *      ** ** if( amount    * 50 )
****     ** * *** * *    *  
* ** * *** ***  * **          *  ** ****  * **** **  *  * * = 10 + 30 * 0.6 + ( amount - 30 ) * 0.8;
 ** ***   *   *  * ****  *** 

 **  **       * *  *  ***** if( amount ** **  60 )
 * *  **     * *** ** * *  *  ****
** *   **   *    ***    ** ***  *  **  * **  **    *  ** * * *** * = 10 + 30 * 0.6 + 20 * 0.8 + ( amount - 50 );
 *** *  *** *  *     *  **

 *****  ***  *    * **    *
* *** ** * **  *    ** *   ***
* ** * **  * * *** *** *** ***   ***** **  * *  * *   **** = 10 + 30 * 0.6 + 20 * 0.8 + 10 * 1 + ( amount - 60 ) * 1.2;
* ** *    *  ***** ** **

**  ** ** *** *   *  * * ** ** *      ** ***  *** *
 ** * * * *  *  ***  * ** *   * 0;

}
answered by (-285 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!
   * *   * **   
#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: Correct output
Case 1: Correct output
Case 2: Correct 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:104.23.197.64
©2016-2026

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 | 19.8k 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 | 18.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users