[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