[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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}
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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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*   * ****  *  * *  **     *  **

*   **  ** ***  *** *****  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);
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* *       **** *  *  ** *    ** * *   **     * ** * (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[])
{

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**  **** *  **** ****  *  *****  **  * * *   
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 * **   *** **     *     ****    * *** ****
**   * *   ** ** * *      *      *   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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     ****  *       ** ** 
*  ** ****  **  *       *  *   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[])
{

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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