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