[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