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

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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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**** ** ** ** **           
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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:   *   *
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 * * ***
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***  *  *
***   * *  **   *  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