[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