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()
{
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 * ***  * **    **            ** 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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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!
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     (){
***  **  * ***
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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;
* * *** *       *  **  **     
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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;

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

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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(){
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          *  * * **    * * x,y,temp;
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   * **** *    * *  *** **         ** * **   ****   * * * ***  *
    
*   *   **   ** **    * *   *  = x;
*    *** * **** *  ** * * *   = y;
**  * **  **  * *  *   *  = temp;
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* *  *  **  * ** **  *  *       ***    * *** *** x,y);
* ****   ***  * ********   *
 * ***    *   *  ** **  ***** *    0;
}

Comments

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