10-12 Exercise: A water supply company

1 like 0 dislike
27k 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 | 27k 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:162.159.115.10
©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 | 21.5k 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 | 19.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users