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