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