[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