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