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()
{
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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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** * 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;

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

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

Comments

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