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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 ** **  (){
* ** ***    **
****** *   *    **  of x and y:   *  *  **  
*  ****  ** ***   *** *** **  *    *
* ** ****** * **  **** of x= %d and the  * of y ***   *  ** * 
** ** * 
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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;
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*  ****  * *  **     ** *  * * **  **  **** * x,y);
    *   *  **  *   *** **  *
***  ** * *     ** *   ****    ***  0;
}

Comments

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