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

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