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()
{
** * **  *  **** ***   ** a,b,swap;
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* *  * *** **   * **        ** 
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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;
 ** * *  **  * *  * ** ** **  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!
 ***  * * * ** **
*   * * (){
     **   ***
******  *       ** of x and y:  **  **
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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;

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

Comments

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