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