[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