[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