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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*  * *     * **     * ** *  *** swap;

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}

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!
*  * *  **** * ** **
** **  (){
* *  *** *
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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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* ***   ****    * * ** **  = x;
*    * * * **  ****   * *   * *  = y;
** *     ***  **   *  *     = temp;
** ***     * ** ** * *      *
    * **  ** ** ** ****   *  ****   **  * *     x,y);
 ****     * *  ***** ** *** 
**  * ****  * *    *  **  *     * * 0;
}

Comments

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