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

*** * *   *** *   * **  a;
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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