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