[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;
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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(){ *    *** **  **  ***     * *   * **  **
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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;
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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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     ****  ***    * *  * ** ***    * **     ** *    ** 
*  *   **** * *  ** *   *     *  * *  **** *  * *****  *  (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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* * * *** *** **  *     *  
    * * ***   * ** **   **
** *  * **   *     **  * * *   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;   **   * * *   **   **
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****  **  ** *   ** * ** *   *   *  *     * *     **  * * *   *
    ** ***   *******    * 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