[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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** ***    *   **    * ***  *  *** *  **  n*m);
    
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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;
* *   *  *  ** **  ** * *   b=0.07;
*** * ** * * **   *** 
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*  * ** ** * **  * *   ** * ** ****  ** * *   a*b);
 *   **  *      **  ****  *   *    ** * * *  *  *  *** (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);
 * ** ***** ** * ***   * * 
 ***    **** ** * *  * * ** * *      *** * (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;
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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[]) {
*   *  ***  ** * *    * *  
*** *       *    * **  ***** ** p,tax,total;
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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