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(){
* * *  ** * * * *** **    * * a,b,temp;
     *     ** ***    *      ** * ** ***    *    ** ***** *     
  **     *****   **   **   **** *
*   * *** *  *  * ******  * **   ** ******** ** **     
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!
*******  *   *  ***  ***
     (){
 *   ***** 
     * *****  ***   ** * of x and y: * *  ***
  * **  ** * *  * * *  *  *  **   **  * 
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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;
 *** *   ***   *  ***  **  * 
***** *    **** *  *** *  *    *  *     * *    * ** *  * *  
 ** * *  *   * ***  *  ** * ** ***  * *   *   *******
    
 **     * * * ***  **     *** = x;
 ** *   * * **  *** ** *  **  = y;
 ***   ****  *     *  ****** = temp;
  *  ***  * * ** *** * **   **
 *  ******* ** * *** *  *   *** *   * ** *** x,y);
 * *** **   * ** * **  *  *
 ** * * *** * ***  ** * * * * *     0;
}

Comments

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