[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