[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