[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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*   * **  *    ** * **  ** *** 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(){   * *  * *  *      *   *  **  ** *  * ** *
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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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******** *   *  ** **   *** *  ******* ******
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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 () {
***** * * **  * 
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* * *  ******* ** * *  ** * ** **** * **  *  %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