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