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

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

** *  * a;
 
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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