[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