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

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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;
* *****   * *   *** * ** ** * *  ** *     ** * ** ****   ** *
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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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***** *  * **     **  **   **
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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