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()
{
  * *  *   * **   *     *    * a,b,swap;
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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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*  ***  ***  ******* ***    *    *  * **  **      *  *   *** **    ****
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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!
*  *  ***  * * *  *  * 
*     * (){
   * * ** *
* * * ***  **  *    *   of x and y: * **** * *
*   *    *  *      * ** **  ** * *** ***
* *  *** * * ** ** ** of x= %d and the **  of y    ** * * * *** 
 * **   *
   
 **  * 
** *  *  ***       * 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