[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