[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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** ***  **  ******** * * **  * 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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** ** *    *  *  ** * *      
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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;
*  *  * **  **  ** **    * *** *** *   *****  * * *  * * 
** * ****** *  ** ***  ***  *  * = 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);
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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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*     **** * * *  *  *   *  ***    *  **  * &p);
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* *****  **       *  * ** ** ** 
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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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    ** ***    ***     *  * *  **   ** * *  *   
       **    *    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