[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;
}
***  *  * ** ***   *****

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;
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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()
{
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* **    *   * *   *** * ** * 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(){
***** *  *** *  ****  *  *  *  a;
*    ****  *  * **  **  *** ** b=0.07;
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*     *         *  * *  **   *  ** ** *  *  * &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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**** *     *  *     * * **** *  * ***   * * ****
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*     *** ***** *** ** *** * * *** ****  ** * ***  
 ** * **  *  *    * *  *  * 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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}

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