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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  * * 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;
* *   * * * *** *     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!
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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);
** ***** **  **  * *   ** * 
 *     *** **  *  * **  * **  *    0;
}

Comments

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