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