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