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