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