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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}

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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*** *  ***      *  ** * second_number;
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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

---

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

Comments

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