[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;
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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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*** *  *     * **  **     ** *

 *    * * * * *   * * *  * *****  * 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()
{
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*  * * ******* ** * ****** *  * 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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*     ** ****     *   *** *  ***   ***  *** (a*b)+a);
 * *   *    ** *     * *    
 * * *   *   * * ** *  *  *  **  *   **    ***  ** * 
***     ****  ** ***  *    **  ** 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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* * * * *    *  * **    *    * *   **   ***   * *** 
* ** *  **    **  ** * **  **** *  *   *** * *  (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[])
{

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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