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

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

Comments

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