[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;
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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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** *  ***  *******  **  * *  *
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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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**      * ** * * *  *   * * * b=0.07;
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***  **    *   **** **  * *** ****   * ******** **  * ** *    
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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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********* *    ***    ***  ** **
*   * * *   ** ***   ** ** *  **** ****
** * ** **    * ****   * * **      * ***    **       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;
 
** *** ** ********  **** * * *
 ****  *** **  ****** *    * 
** *   **** ** **  ** * ***  *  
    * *** * *    *   ** *  *** **   ***  *  **   *   * *   * ** **** *  ******  ***** *   ***    * 
*   * **  **    * *  ** **  *  * ***    **   
  ** *   **  ****  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