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