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