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

u

Answer 1

Hidden content!
#include<stdio.h>

int main()
{
 ******* *   * **     **    **  * a,b,swap;
*  *** *      *** ** * *   ** *    *   * ** ** ** *** ***  *
*****  * ** **** * *   *  ***  
   **      *   **** *  * **     *
*      * *   ****  *   * ** **  ** 
*   **   ** * ***   * * ** ** ****     * *    * *    
 * ** *    ***** *  * **   **  * 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;

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


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

 * *   ***  *** **   ***   *  * *****   * * **  *   * * );
******  *  * ** **      ** * **    *  *  * *      * *** *  ***
 ***   *  *  *****  * ** * *   * 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;
*  *   * ** **** *** ** ** * *   **  * * * * * * * ***  ***  *  **  
* *  *    ** ******  ** *     * *  *  ***  
**  ** *** **** *    *   **     *  **   ****** **
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;
* *** ** *** **  * *   **  ** * * * * * ** *** * ****** 
* *  *** *  ***    * ** * *    * ** **    *** * *  *    *  ** 
     ** * * ** ** * *  * *   *  
 *    ****   *  *    * * * *  
   * * ***  ******** * * *  
* * *  **  * **  *  * *  *  *   ** *   *** ***    ****
return 0;
}

Comments

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

Answer 5

Hidden content!
*   **  **   *   * * * *
* *  (){
 * *  * *  *   
  *   *  *  *  **   ** of x and y:   *   **
 ****   *******  *** ****  *    * *  * ** 
 ***        * * **   of x= %d and the    of y      * ** ***
     *
  *
  **  **
 *     *** *     **  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