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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*  ** * **  * ** ** *      **
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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(){
     **      * * **      **    a,b,temp;
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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;
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 * * *  * ***  * * * ** **
**     *    *  ** ** 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