[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