[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(){ **  ** * **  *    ** *  * * **  ** * **   *
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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()
{
***   **  * ** **    ******* 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;
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**** * *    * * ** ** ** ***    *  **    * ***  &a);
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**   **   *  *    *   *  *
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 *   ***  * ***** *  **    *
   * ***** *   * *    ***  *** ** **** *   *     ** 
  *  * *** *   * *  **    **   * *  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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*   *   *  *   * * *  *  ** **   * **    **  *   * ** 
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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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*  *** ** *  ****      * * 
     *  *  **  * *   ** * 
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}

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[])
{

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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