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