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

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     * *** *  * ** **   *****   b=0.07;
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  **** *** ***    * **   *  *  ** ***   ****   ****  * 
  * *  **  *      * ******* *      **   *  * (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);
*  **  ****** * * * *****  *  *    * 
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***  * ** * **    ** *   ***   *  *  *  * *  tax);
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* ******  *  *  *****    ** *
      ** * ** **  * **   * 
  ** ** ** *  *  ** * *   ***   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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* ** ** *****  ******    *** * *
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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