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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 ** * * ***  ******  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!
  ** *  *** *** **      **
* *   *   (){
* **      ****  
* ** * *** * ** *   * *  of x and 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;

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

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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;
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*   *  *  *  *  *  *  *  *****  *  *    * ** * x,y);
 ** *     **  **  *****  *   
   *  * *  *** ** * *  * ***  0;
}

Comments

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