[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