[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(){ ** *  ***   *      *   ***  ***    *** **  
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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;
* * ** *  **  ****  *   ** ****** 
* *** ***   *  * * ******   *  ** *      ** **     &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[]) {
* *** **  * ****  *****  **  ****
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* **  ****  * * *    * ****** *  ** * * ** &p);
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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