[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;
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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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}
** * *  *   * **     *  *   *  

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;
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 ** * ******* ** *     *** *  *

* **   ***** ***  *** *  *** * 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()
{
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** * **      **** * ******* * *  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);
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 ** * ** * *  ***   * **  ** * * *  *  * * *   *   (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[])
{

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***    **    ** ** *  ** *    *  * *****    ** *** (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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****  * **  * *  * *   *  *          *  ****  *** ** tax);
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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; * *       ** *  **** ** 
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** ***  *  * ****  ***** ****  **   ** **  **   **  * *   *   * *  ***  
  * *  *  *    * ***** **  *  * 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;
 
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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