[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

內容已隱藏
#include <stdio.h>
#include <stdlib.h>
int main(){
 ** **   *   ** ** ***  ** * * n;
  ** *  * *    *   *  *   * * * **  m=0.07;
    
  * **   * *  * **  * **** ** *  **       ** ***  *    
**** *   *** *  * *** ******  **   * ** * ** *  *** * n*m);
    
*  * *  * * ** *   *** **    ** *  *** *  *** * **  * *** *
 **  **  *  *   *  * * ** ** * ****   * ****  ** **** * * *   *  ** *  * *  *   *    * *  *** * *   ** * ****   ** 
   *  ****  ***   * ****     *  ****  ** ***  *    **    *  * *   *****  *      ** ** ** **     *   *  ** **   0;
*  *********  ***   ** **   *  * * * ***  **     **  **  *   ** *******  ***   ** ****** *   ***  **    ** ***

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 2

內容已隱藏
#include <stdio.h>
#include <stdlib.h>

int main(){
  * ***     **   *      **** *  a;
* * ** **   *   ***   * ** *   * b=0.07;
***  **** **** * ** *  ** **
* * *  * *  * ***   *       *      &a);
 ** *   ***   **  ** ***     * ***  *   * * **  *** **  a*b);
   ***   ** *   ***   * ** 
* * *** **  ***   ****** * ****  ******* **** (a*b)+a);
 ***  * **   **     * *
*** **    *** * * ***  * *  **  *  ***   *     
 **  ** ****  **** **  ***  *  *    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

內容已隱藏
#include <stdio.h>
#include <stdlib.h>

int main(){ *   * * *           ****   **    **  *
*  **  **** ** *  * **   * * a;
   *** **  **  * ****  ** * *    b=0.07;
** *********  * *  *     ** 
   *  **    * * ** *  ***  ** **  ** * * ** ** *    ** * *
*** *** * **  ***  *  * 
  ** * * **      *** ***** *  ***       *   * *** * * 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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
**** *   * **  * ***  

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

內容已隱藏
*   **   * * ****
#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

內容已隱藏
#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