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

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

Comments

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