[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