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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***  *** *   * **  ***      **  ***    *  *  * 
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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: ****    **
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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