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

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

Comments

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