[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(){
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* ***  * * **   *** ** ***  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(){
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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(){ *    * * * *  *  **     ****   ****    * *
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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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**   *  **    ** * * * ** ** *
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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;
*  **  ****  ***  ***  * ***  * 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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***** * ***    **** **  **  *  * **** ** **   * ** * * &p);
*    ***  ** **  * **        ** *   **
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 ****    ** *  ***    ***  
    **  **  **   * *  **
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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[])
{

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