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