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()
{
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 * * * ***   **** *  * **** 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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  * **     **  *   **  **  *  * *  * * **    * **
return 0;
}

Comments

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

Answer 5

Hidden content!
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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