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