[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