[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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}
*  ** *** ***  *   *  * *    * 

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

**** * **  *   *  ** ** **  a;
*  *   *******  *   **  *     b=0.07;
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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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}

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