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!
* ** * * **   ****  
 * *   (){
***    * ***
 ** ***   ** *** *    * 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;

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

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

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

Comments

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