9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

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Answer 1

Hidden content!
#include<stdio.h>

int main()
{
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****** *  **  ** * **  ***  * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
***  * * * *   ** *  ** * * *** first_number;
      **  *****  * *       **  second_number;
 *    **  *** *** * * * * swap;

*   *******  ***  **    * *    ** *      ***   * *   * *** *  *


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* *** **     *** *    *    *** *  0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
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    *  (){
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** *  * *****  *    x   * y ** * * * *      **    *      


   *  0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
 *   ** * **  *   *  * * 
int **  **
{
***  **    ****   a,b,swap;
    **  ** * **  *  ** ** *
* ** * * **  ** ****** **   * *  *
swap=a;
a=b;
b=swap;
  **       **    **** a);
 * ** ******    *    *** 
 *   * ***    ***   0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
*   *  * *  * **  * * *
main()
{
*  **           ** ** 
 *    ** ***    **   *    *
*** *  **   **    * **   **  * 
swap=a;
a=b;
b=swap;
**     *****  * *   *  a);
   ** *  ***    * **  * 
*  ** *   *  ****   0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
  *** * *  *** ***  ***
 int main(){
int a,b;

*    **  ** * ***** ** * **   *    ****   *********** * **    ***  

   *  *  * ****   **  **  **   *******    ***   **   *  * ***  

return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
**   * *** *   *  ** 
 **   ** *** main(){
int a,b;

***      *** *    ** * *** *  *  * *** * ** ** ***  ***** * *

** **** **   *** * * *****   *     *************  * ** ***  *

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
* * * **     **  * ****  **   
 **    *     *** *  *   *      * x,y,temp;
 ** *  *    *** * **** 
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 ****   *** ** **   *    *   ** = y;
***  *  *   * *  * *   *** = temp;
     * ****   *****    * *** 
* ** * *  * * **** ******** * * ** *  * *     **** x,y);
 * ** *    ***   **    
* ** *** * *  ***   ***   0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output