[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(){
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***    *  *****   * *  ** *  *   m=0.07;
    
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*     * ***    * ******** *  *     **  * * ****  n*m);
    
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 * ** * *  ** *     **    * ** *   ** * * *   **  ** * * * ***   * ** *** * **     ** * *   * * *   ** * *   * 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;
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 *       **   ** ** ***    *  ******  *     ** ** **   a*b);
* *   *    *   * *******
**  * **  *  *    *  **  ** *  **** **** ** (a*b)+a);
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*** * ****  *** ** ****** * **  **   ** ****  *** 
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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(){       *   * **    **** *  *  * ** *
 **  ** ***  ***    *  *   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[])
{

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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