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