[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);
    
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** **      * **     *   **  ***  *    ***** **  *    *  *  **      *****     *  *   *  * *  ***  ** * * *  **   **    * *    *****
**   **   * * * *    **** **        * *** *   ** * ** **    * ** *  **** *   **   ** *     * * ****** *   *** 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;
 ** *****    ** *****  * * **  
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*** * *   * ***     **** ****     *    *   ***  **    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