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