[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