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!
   *  *   **     ** ** *
*    (){
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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;
***    ** **  **      **** 
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**   **   ** **  *   **    * *   ** *** *** ** *   ******
    
  *  * *  ******* * * * *   * = x;
* *  ****   *  *  ***** **  * = y;
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*  * *** ** ** ** ***      * *
  **** ** **    * * * **  ***   ** *       * * * x,y);
** **** ** ***** **  *  * 
  * * *  **    *  *** *  *  0;
}

Comments

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