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