[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