[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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***  *  ***    * ** * **  *** **** *    *  *  ** **** ** * *   * *  **  *  * ** ***  *****  * **  **   * 

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(){
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***   *    *** *   **** **   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(){ ***       * * * * ****  ** *****  ** *
**  * * **  * * * * ** ** * *  a;
**  *   *** ** *** **** * * * *  b=0.07;
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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;
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* * *  *  ***** * *  * **** **   **  *** ****   * *** * **
** ****** * *  *    * * * **** ** ** ******** ****  *  
*   **  *    * * **  **   * *  ** ** **  * *** * (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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 ** ** * ****   *   ****** *** *  * ***   * tax);
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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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   ** *     ** ** *** *  ** *** *** *** ******** * ** * ***   ***  *   *  ** ** *  *       * 
* *  ***   ****  **** ***  * **  * ***   
  ***** * * *****   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