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