[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