[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);
    
  * ** **** *  *     *      **  *    * * * *  **  * **
* * *** **   * ***  ** *  ** * *******   **  * **** ****    *    **    **** * *** * * ***  *** **   **** *    *  **
*  * * *** **  ***  **  ** ** * *****   ** * *** ** ****  **   ***     *     * *** *  ******    *****   * * * 0;
  *  *   **  **  **    ***   ***  **    *** ** ***   *  * * **  *    *  ****** * *****  ** **  ** *  * 

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;
  *  *****      *   **** * * 
   **  *** * * *** **  *  * *  **** *    * *    * &a);
****** *  ** ** * * *****   ***** * **** * **   * ** *     a*b);
****  *** * *   * * *  * *
 ** **   ***  *      *  *** **        * * * * (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[]) {
  *    **** *    ***  **  
    *   ******* *      * 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;
 
*   **   * **    * *  ** ***  * *
*   ** ** * * * **  * * **  *    *    
**   * ** ** * * **   ** * ***** * *  
  **  * *** ** * * **  * ** ******* **   **   ** *** **  **     * *   **    *  * *   **
****    ***  *   ****** * *  **       * *   
    **     *        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