[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