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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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

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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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 *** ******* ** 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;

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

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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;
* **     * *  ** ** * *******  *
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*  *   ** *****   * *   * **  * *  ** * ******** *  
    
** * ******  *   **  * *  * ** = x;
***  *  ** * **   * **   ***   = y;
     * ** ***  ** *    *  ** = temp;
    * **** ***  * *  ***
 ******** ******* **  * * *** *      **  *  * * * x,y);
 *** *   ****      ********
      * **   *  * *** *  ** * *  ** 0;
}

Comments

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