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()
{
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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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     * (){
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* ** 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;
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  * * *  *  * * **   ***  
*      * **** * 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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*    * **   ***      *******   **  * ***  **  * ***  ***
    
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**  *     * * *      * ** * **
    ***  * ** * *  ***** **  * **** *      ***   *    x,y);
***   **   ** **     *     *
**  *  **** **     **  *** * ** * 0;
}

Comments

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