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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return 0;
}

Comments

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

Answer 5

Hidden content!
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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;
  *  **   *  *    *   *  
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**  * **  ***      ***   ***   **      *******    ** 
    
**    **** ** * ** * ** **** = x;
*  *  *** *  *** *** **  *    = y;
***     *  *** ** *   * ***** = temp;
****  *     **    ** ****  * 
**   *      * * ** * * *  * * **** ** **  *  *   x,y);
 *   *  * *  *  ** * *   * 
* *  ******* *   * ** **  * **  0;
}

Comments

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