[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