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