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

 ****   *   ***  *    *********  *** ** * *** * *  **  );
  *  *** * * ** * **  *  ****   * **  *  *  * ** * ** **  *  
 ** **  **  * *   * **   ********  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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        *** ***  * ***   *   *
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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