[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