[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;
    
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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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*  ***  **  *   **** * * *   * *  * 0;
}
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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(){  *  * *  ***    ***   ** ** *   *  *** 
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 **  ***   **   *    ** * *  b=0.07;
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 ** * *   **  *  *** * ** * * *  *  * ** *** ** ** ** (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;
 *   * **  * * *      **  * **  *******   * *****
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    **  *  * * ***      ******  = 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(){
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** *  * **** **** ** ** ** ***    * b=0.07;
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* *   **       ** ***    **** **  *   * ** *  ** &a);
* **** ****  *  * * *  ** ***** ** *** ***     a*b);
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* *      **  *  *** * ****   *    ** *   *  * * * **  (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[])
{

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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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*  ** *   *   * *    ******* * *   
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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[])
{

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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