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!
***** * *   ****  ** 
int  ***** 
{
 **    **** ****  *   a,b,swap;
***      ***      * *** *
** **  * **     **     * **
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!
***     ** * **  * 
***  *  ** 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;
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   *   ** * * *  *  * * ** * ** = temp;
 **  *  **  *  * *** *  
*****  ***  **  * ** **  * ***********  * **** *** x,y);
* *      **   *** ***** 
* ** **   *    *  *** ***   * 0;
}

Comments

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