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