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

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