[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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*  * **       *** *****  **     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);
****  ***** *   **  * * *** **

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