Midterm Question 1 - Makeup

Question

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

 

Answer 1

Hidden content!
#include<stdio.h>
int main(void)
{
* *  *** *******    **  c,total;
  * **  ** * * **** ** ******   **    ***    * *

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

 *   **   **** *  if(c>30 && c<=50)
   {
* *  *   *     ** *  *** *  * **** * * *  ***     **  * ** **  **    * *  
 **    * *   ** *  *   **  *   **** ****  *   * * ** ***** *  *     * **  

 **  **  * *** * * *
 **** ** *     **    *  if(c>50 && c<=60)
   {
 ****  **   * *  *     * * *  *  *** **  *********** * * *****  ** ** *  
* * ****** ** *   **  *  ****    *   * *  ****** *  *  * *** *  ** ***** 
***** ** **  *** 
 **** *  *** ****   
   {
 **  * * ****  *      * **   **  *   *** *     ** ** * ***   *     * * 
     ***  *  **  **     * * *  *** *  * *  ** ** *****         ** ****
     * * **      *** 




}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 2

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
**   *   ***    * * ******* *  a;
 ********   * *****       * ***  ** * * * ** * ** 

 * *  *   * * *    **   **** (a<=30)
   ** ** *     * **  ** **  ***      *    %.2f",a*0.6+10);


** **   * ***   *  *  ** *** **  (a<=50)
**  * * **** **  *  *  *  **** *   ****  ** **    *****  ***     **  *  *  **   *  ** *  *


 ** * *   **  *****    ******** (a<=60)
 **  * *   ****  * ** * * ****  *  *  **  *  *   * ***  * *  *   * ***  ***   * *  ****  ** **  * 


   *  **  *  * **** **      * * (a>60)
   * *       * *    *  *** *** ** *  * * * **      **  *    *   **      * ***  **  ** **

  *  *** *   * *******
 ** ****** ***** *** ****    *  0;
}

Comments

prog.c: In function 'main':
prog.c:7:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'float *' [-Wformat=]
     scanf("%d",&a);
             ^

Answer 3

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
*  ** *     ***   ** ** a;
** ***  * ** * ***** *  * **  * ** ***  **   * ** *** 

 ** * **  * * **** *   *    *  (a<=30)
 *   * ***  *   * **  ******   *** ** **  %.2d",a*0.6+10);


 ** ********   * *  * * * (a<=50)
 **   *     ****  *   ***   * ***** ***  **  ****   * ** * * *  **  * ** ** * * ****  ***  *   * * * * 


** *    * * * ***    *  *  (a<=60)
   *       *   ** **   ***        ****  ** * ** **  ** *   *  * **  * ****  ** * ** *    *


* *   * * *  * * * ** ****   (a>60)
  *  **   ****    * **    *** *  * *  * *       * **  ***** * * ***** *     *  ****

 **  ***     **  * * 
* **  * ** *  * *  *** *** *   * 0;
}

Comments

prog.c: In function 'main':
prog.c:10:22: warning: format '%d' expects argument of type 'int', but argument 2 has type 'double' [-Wformat=]
     printf("Cost: %.2d",a*0.6+10);
                      ^
prog.c:14:26: warning: format '%d' expects argument of type 'int', but argument 2 has type 'double' [-Wformat=]
         printf("Cost: %.2d",18+(a-30)*0.8+10);
                          ^

Answer 4

Hidden content!
#include   ***   * * * *


int main(void)

{
   **    *     * *    y, fixed_charge=10;


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

 ** ***  **  *    **  ** (y<=30){


 ****** *  * *  ****    ** * * *** * * *** * ** ** *  ** * ****** 
}

 if (y>30 * * * ** **  y<=50)
*  *** *   *    * ****    *****  *  

* * ****** **** *      ** * *      *  *   **  * ** ** **    * *   * *****
* *     *   *   *** ******  *****
***   * *** *** ***  ******  (y>50  ***  *  *  * y<=60)
   *   ********* * *   *

**   *** *  * *  ******  *  * * * **  * ****  *** **  ****  **  *   ** *** *   
 }
 * ** * ** ******* *** *   * *   ** *    * (y>60)
  **  **   ****   *** ****

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



return 0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output

Answer 5

Hidden content!
#include       *** * *   *


int main(void)

{
 *  * *    ***** *** *  * * y, fixed_charge=10;


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

  **  *    *   *  *  (y<=30){


**  *    **** ***** *     **   ** *     * *** *  ****** **    * *
}

 if (y>30  ***   * *** y<=50)
 *   *  *  ***  *   *  * 

  * *  * ***  **    **  *    * **  **    * *  ****  ***    * * ******
  **  ** **  *    *** ** 
  **  ** ** *  **   ***  **   (y>50  *      * * y<=60)
 * *  **  ** * ** *   *   * *

 * ****  *   *  * * *  * *******  ****    * *** ** * * *   * * *  * ** * **        
 }
 * **     * * ***  * ***   **  **** ** ** * (y>60)
****    **     * **  ****

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



return 0;

}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 6

Hidden content!
 *  *** ***   *
int main()
{
int n;
float cost;
 * *  *** * ** * *** *   *  ****
if(n>60)
*** **    * * * ****  ** * ** ***  * * **  **  **  * *
 ** *   * **    **** * **** *** **  
 * *  *    *** ***  * **  * ** *  **  **    *
  * *   * **      * *** **     
 ***   *  *   *  *****  * * * **   **** 
if(n<=30)
* **  ** ** *  ** *   * ****  *  * * **
   **  *  **** ** %.2f",cost);

return 0;
}

Comments

prog.c: In function 'main':
prog.c:13:1: error: expected declaration or statement at end of input
 return 0;
 ^~~~~~

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output

Answer 7

Hidden content!
#include  * ******** 

int main(){

 *** ***  * * *** **   ***  sum,n;

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

**  *  ****  *   **** **   *  **** ****** *  
  *   *  *   ** = 10 + n*0.6;

***     **             **  **  *   * * **** **  *   n <50)
 ** * *  *** *  * * *** *   = 10 + 30*0.6 + ** **

***** *   *  **     *****  * *   * *  ***  **     * ***   * *** 
**** **  ** *** * ****  = 10 + 30*0.6 + 20*0.8 + *   * ***

 * * *** *   ***** * * * *  *** *     *
  * * *   *          ** * ** = 10 + 30*0.6 + 20*0.8 + 10*1.0 + **   *

  * * * *   ***** *** * **** ** **** * **  **  ***  sum);

 * * ** *   **  *  *  *  *  **  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output

Answer 8

Hidden content!
#include<stdio.h>
int main()
{
******    *  *    *    * **    *** a,b;
 ** * ***     *   ***  ***  **    *   *   * **  ***   *
 ****     *   *     *** **** *  *** ** *
    {
*** ******* *    ** **  * **** * **  **           ** ***  
* *  ****  *  ** * *    *  **
* *    ** ****    *** ***     ** **       **  * ** ** * ***** * *  * * 
    {
**   *    * ** ***   ***     ** ** * **  ******* ** *   ****  ***** ** 
 *     *    *  ******    
***   *  * *    * **** * ** * *  ******     ****** **  * *  *   **
* * *   *    *     *******    
** * * **** * **    ****** *  *   **  * *   **  *    * ** * *  * **  *
    }
***  *  **   * * ***  * **  * if(a>=60)
  * * *    ***** ** ***   ****
** *  ********* *    *  * *** * ***** ******* *  * **** * *  * ******** **     
    }
*** ******* * *    ***  *  ***   **   * *   *  
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 9

Hidden content!
#include <stdio.h>
#include       *  ***  * **

int main()
{
*  ** *** *  *   ***     * * ** * * n,sum;
******  ** ***   * * *****  ** *** * *   ** * *   *   *  ***

 * *  ***    *   * ****   *  ** *  *  **** 
 *  **** *  **** * ** *  **
*      *  **     *** ***  **      *    * * * *  **** 10+n*0.6;
*  **   * ** *  * *  **    * ***

*** ** * ******  *  *   *  * ** * *  if(n>30 && n<=50)
* * * * **   *** **** **** * * **
 *  *      *           * * *** *  **  *     **** **  ** *  10+18+(n-30)*0.8;
** *      ***    ******    

   ***   * * *******  ***   * if (n>50 && n<=60)
* ***  *** *    ***  *  * * ** ******* * *  ** **  ** *  *    * 

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

* ** * ** *****  ****     ****    ** * *  *  %.2f",sum);

  ** *  *** ** *      * *   0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output