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