[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