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

Comments

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