[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