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

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

Comments

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