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(){
 *      * * ** **   * **      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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*** ** ** *  *     ****    * 
* *  ** * * ** * * ***  * **  * ** **    **  *******  ***** 
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