[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