[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);
    
 **  ** ** **  *** ***    * * *    **   *  *** * * **  *
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**  *  ** ***  ** **   **** *  *** ** * * ***** * *  * ******  *****   *   **** *  **  *****   *      *** ** ****  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