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

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

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

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

Comments

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