[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