[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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*   * **   *       *     ** *
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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

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

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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