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

---

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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***   ***   *   **** x *  y     ** ** *    **  * **   


**    0;
}

Comments

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

Answer 6

Hidden content!
****    *** ** * **  *
int  ***    
{
  ****  *  **     a,b,swap;
* **  *  *** * * ***** * *
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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;

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

Comments

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