[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;
    
*  * **  * * *** *  ***  *** * ****  ****  * *  **   **  * *
 ** * *  ** *     * ****        *    * *   * n*m);
    
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* *   *  *  ****  ** * *    ***  ** ** *   * *  *  * * ***  *  ** ***** **** ** ** * **   ** ** * * 0;
*** *  ** ***   **   * **  * *    *** * ** ***  * **   *      *  ** ****   * * *** ***  *  *  *  * 

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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**    * * *** *   **** ****   ** **  ** ****  * **  *
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}
  **    ****  **  *   ** *

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[])
{

 *  **   **   ** *   *** * a;
* * *   * *** ***   *     **   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[]) {
  *** *  * *    *    * ** 
 *    *  ****  ***    *  ** p,tax,total;
*   * * * * * * ***** *     **** * * &p);
 * ** * *      ** **  **** **  
** * *** * *  * *     **      **   ****  
 *  *    ** ** * * *   ** *  ** *** *** *   * * ** ** tax);
    ****  **  ** *   * **  ** ** * ******** * * **
 **  * **      * *** *  *  **  **  * * *    *
**  ** * *** * *   ***  
       *   **    ** *   * *
  *    * ***   *   **     **    ** 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