[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(){
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** ** **  *  * * *    * *   *  *    m=0.07;
    
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*  **  * * *  * ** ** * **    * *** **        **     * ****  * *  *      *   * **** *** * *** ***  * 

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(){
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***  * ***** *    *    *  *     ****  b=0.07;
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*  *  * ***     ** *    * *  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;
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 * **   ***    **  *   ***  * *   *** **   ** ****** *  (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[]) {
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**      *   ** * *   *    ** *  ** * *   * ****   &p);
*     **   **    *   **** * ** *     *** 
*  *  ** * * **       *  **   * 
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* *     *  ********  * *  ***** *
    *       ** ******  **
** *    *  ** ***** ****   * *  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 () {
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* * *    *  ****   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;
 
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 **  **     *     ********   *       *      *  *   *   * *  *    *   *   * **  *  
 * *   *  ***** ****** *       *****  *   
   * ** ******  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