[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