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