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


 *   0;
}

Comments

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

Answer 6

Hidden content!
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int  *    
{
   *** *** * *** a,b,swap;
**   ***   **** *  *  *  * **
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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!
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  *      main(){
int a,b;

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

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

Comments

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