[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;
    
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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(){
 **  ***      *   *   ********  a;
*   *    * *   **** **  * *** b=0.07;
 **  ** *  **   ** *  *  * ** 
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****  **  ** *  **  *  * * **    * **  ***     * (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[]) {
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* *** **      *   *   **    **  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;
 
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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