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