[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