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

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

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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