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(){
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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!
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***    * (){
 *   * ** *
* *       *        of x and y:  **** *** *
  *      * ** **  *       *  *  **  **
 *    *  *   * *  **  of x= %d and the     of y  ****  *  **
 ** *
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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;
 * * **  * *   **** * *****  *
**** ******    **  ***** * * **  *** *  ** * **  ** *
 **  * *** **** * **   *         * **  * * ** * ** ** **    **
    
**   *  *  *****   **** * = x;
 ** *  ***** * *  ** ****    = y;
   ****  *** **  ****  * *** ** = temp;
 *   *  * ***   **  * 
*    ** * ***   **  * *    ****** *** *  ** *** **** *  x,y);
*****   *** * ** **** *  
** *   *    *    ** ** *  *** *   0;
}

Comments

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