[Final exam] Question 10

Question

Question 10: Please write a program that can calculate tax 7% (0.07) of a product price, then outputs the tax and a total price including the tax.

Hint:

*Use %.2f for two decimal points*

*Printf a new line between the tax and a total price including tax*

Input1

80

Output1

5.60
85.60

 

Input 2

452

Output2

31.64
483.64

 

Answer 1

Hidden content!
#include <stdio.h>
#include <stdlib.h>
int main(){
 *   ***          *****   *  n;
**    ***  *  *  * ** *      ** * m=0.07;
    
*   *  ** ***  *   * **  ** *  **   ** * ****  *  **   *** ** 
   * *  *   ****         **** *   *** * * * *   * * n*m);
    
 * **      *  **  *    * ** *    **  *** *   **  
* ** ** * ** * * * ***   * *  **** **   ***  ** *  *  *** ***   ** * ** *******   * * *    *** *  * *** * * **  *** ** *** 
 *** * * ** ***  *     ***  **  * *     * *  * *      *  ***       *  *      **  ***  ****    ** **     * *  * 0;
   * *     * **** * ***   *   *        * * *  ***  * * ***  ** * * * **      ***    * *   *** **  * ** *

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 2

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main(){
 * *** * **   *  *   ** * * a;
 * ** * *****  * *   *    *  * b=0.07;
 * * * ***  *  ******  ****
*  * *** *****  *    *** *** * * ******   ****  &a);
** * *** **     ** ***    * ******** *  **   a*b);
 **  ** * **** *   *  * ****   ****
** ***   ** * * ****   ****    *** * *   * * *   *  **  (a*b)+a);
   **   *   **  **** *  * 
  * * *  ******  *      ** **   ****   *****   *
 **       *** ** *  * ** *      0;
}
  * * *   ** * * **     **   **** 

Comments

prog.c: In function 'main':
prog.c:9:14: warning: unknown conversion type character '>' in format [-Wformat=]
     printf("%>2f", a*b);
              ^
prog.c:9:12: warning: too many arguments for format [-Wformat-extra-args]
     printf("%>2f", a*b);
            ^~~~~~

Answer 3

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main(){  *   * **  *    * ** *** ** *  *  *   
* * * **  **** **  ****  * a;
 ******  *   *  * * *** **** b=0.07;
* * * * *  ***  ******  
** *   * *   * **        * *  ** * * * ** * ****  *****
   ***   * * * * ******
** **  *   * *****  * *   ** ******   * *  *  ****   a*b);
 *      ** *** *****   **  * * *** ****   *  *  (a*b)+a);
  *  *    *** **   ** * **  

***** * *   * ** **  ** **   * *  *   0;
}

Comments

prog.c: In function 'main':
prog.c:11:18: warning: format '%d' expects a matching 'int' argument [-Wformat=]
     printf("%.2f%d", a*b+a);
                  ^

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 4

Hidden content!
#include  * * *     *** 
int main()
{
*      **  *      *   n;
     **    ** **   **  *      ** sum,c;
 *  *      *** * **** **** ****** ***  **  *  **    ***
  *  *  *       ***  * *** **  * = n*(0.07);
  *  **   *   * ** ***    **  = n + c;
    **  * ** *  ***  *  * * ** *  *** * **   ***   *      
  

Comments

prog.c: In function 'main':
prog.c:7:17: error: 'n' undeclared (first use in this function)
     scanf("%d",&n);
                 ^
prog.c:7:17: note: each undeclared identifier is reported only once for each function it appears in
prog.c:10:12: warning: missing terminating " character
     printf("%2f\n%.2f,c,sum);
            ^
prog.c:10:12: error: missing terminating " character
     printf("%2f\n%.2f,c,sum);
            ^~~~~~~~~~~~~~~~~~
prog.c:10:5: error: expected expression at end of input
     printf("%2f\n%.2f,c,sum);
     ^~~~~~
prog.c:10:5: error: expected declaration or statement at end of input

---

prog.c: In function 'main':
prog.c:7:17: error: 'n' undeclared (first use in this function)
     scanf("%d",&n);
                 ^
prog.c:7:17: note: each undeclared identifier is reported only once for each function it appears in
prog.c:10:5: error: expected declaration or statement at end of input
     printf("%.2f\n%.2f",c,sum);
     ^~~~~~

---

prog.c: In function 'main':
prog.c:9:5: error: expected declaration or statement at end of input
     printf("%.2f\n%.2f",c,sum);
     ^~~~~~

Answer 5

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main(){
* *    **  *** * *********** ** * a;
*  *     * * ***** *****     *   b=0.07;
 * **  **   *   *** *    
* **   * * **   * * *   **    *** ******    ** &a);
*    ** *  **    *  ***  *  * * **    ***   *** **     a*b);
 *** **** ***   *  **  *** *   *
*  * * *  *  **** ** *  * *   * **   *** *  ** **** (a*b)+a);
** * ** *  ***** * ***    
  * *** * *******  ****  ***   * *  * *   **   * * 
*  *  *  **** *    ***   ***  * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 6

Hidden content!
#include  *  ***    ** 
#include  ****   *****

int main(int argc, char *argv[])
{

*** *  *  **  ***    ****   *   a;
* **** ** ** *** *  *  **   b=0.07;
*** *   **** ** ***  ****      **    *  **    *** ** *    *
   **    *  **   * ** ****  ** *    ****  * **** * *
 ** * *** *  * * * ***        * *** * ** ** *   *   (a*b)+a);
  *  * *   *  * *   *** *   * **  **  *    *      **
 *  *****    * ***     * **    * 0;

}

Comments

prog.c: In function 'main':
prog.c:7:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
     scanf("%d",a);
             ^
prog.c:9:12: warning: too many arguments for format [-Wformat-extra-args]
     printf("\n",b);
            ^~~~

---

prog.c:1:19: fatal error: cstdlib: No such file or directory
 #include <cstdlib>
                   ^
compilation terminated.

---

prog.c:1:19: fatal error: cstdlib: No such file or directory
 #include <cstdlib>
                   ^
compilation terminated.

Answer 7

Hidden content!
#include <stdio.h>
#include   * *    *** *  

int main(int argc, char *argv[]) {
*    ** **  * *  *  *  ** * *  
  **  ***    * ** * * *     ** p,tax,total;
  ** * * **** * **  ***** * * * ***   *** &p);
   ***  ** ** ***   * *  * **  * 
*  ** *  *  ** ** *        *  * * * *
 *        *   **   ** *  * * ** ****     * **** *  tax);
* *  * ** ***       *** **  ******  **  * *  ** *
 **   *     ** *  **** ** * ***  * *  ***     
  *       *  ***   *   * *
       **   *  ** ** ***  
  * * *   *   ***  ** *******   *  * * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 8

Hidden content!
* *     *** **** *   *  

int main () {
  * ***** * ***
**   *  ** * ***    a;   * ****         * *   *
*  ****** ** * ** ****   ****** * ** ** *  * **  * %0.2f\n", a*0.07);
** ** ** *      * **** *  * **        ** * * ** *   ***** 
* *   ****  *  ** ***** 0;
}

Comments

prog.c: In function 'main':
prog.c:7:14: warning: spurious trailing '%' in format [-Wformat=]
      printf("%\0.2f\n",a+a*0.07);
              ^
prog.c:7:15: warning: embedded '\0' in format [-Wformat-contains-nul]
      printf("%\0.2f\n",a+a*0.07);
               ^
prog.c:7:13: warning: too many arguments for format [-Wformat-extra-args]
      printf("%\0.2f\n",a+a*0.07);
             ^~~~~~~~~~

Answer 9

Hidden content!
   ***  *  * ***  **  
#include *  **   * *  * *

int main () {
*  **   * *
*   *  * **  ** ** a; * ** * * **   **  * *   ****
* * *******   ****  **   **** *  *** ***** *  %f\n", a*0.07);
 *  *****  * * ** ***** *  * ** ****  ** *      *****  *     * 
  **  ** * ** * * **   *   * 0;
}

Comments

prog.c: In function 'main':
prog.c:8:15: warning: unknown conversion type character 0xc in format [-Wformat=]
      printf("%\fn",a+a*0.07);
               ^
prog.c:8:13: warning: too many arguments for format [-Wformat-extra-args]
      printf("%\fn",a+a*0.07);
             ^~~~~~

Answer 10

Hidden content!
#include   ** ** *    * * 
#include    * ** *** **

int main(int argc, char *argv[])
{

   *** **   * a;
 
 **    * ***    ** *  * ****    *  *  *
  ***  * ******  **  * *      * *  
 * **   **** * *  ** *  *     *  **  ** **
*   ***  * * * * ** * *   **   **** ***  **       *    * * * **   *   *    *  *    *   * *  **
 *** * ***** *** *  **** * **    * *     ***    *   
    ******* *** 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output