[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