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

內容已隱藏
#include<stdio.h>

int main()
{
*  * **** * * * **    *  ***  a,b,swap;
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***  * * ***  ***   * * **   *  **
*    **   *     *******  **   ** ***  *  **** **  ***  ** 
  * * *    ** ** *  *  **  * **  0;
}

Comments

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

Answer 2

內容已隱藏
#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

內容已隱藏
#include<stdio.h>
int main(){
** **  * **  ***  ** *** ** * a,b,temp;
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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

內容已隱藏
#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

內容已隱藏
 *** **     *  *****  * 
      * (){
*   ** ***  
*  * *  *  *  * *  * * of x and y:   **  *** 
  *********** **  * **   ** *    *** 
 *   * *** *  of x= %d and the * ** of y        **  ****
* * ** 
** 
***  
**  ****   * *    *  x   * y * * * *     *   ** *** *


    * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

內容已隱藏
  * *   ****  **  **
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

內容已隱藏
**** **** *****  *
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

內容已隱藏
**    * **  ** ** ** ***
 int main(){
int a,b;

** **  *****  **** *   **   * * * *  * ** * * * *    **  *** *** 

*  **     * ** * *  ******* * *  ***** ** **** *  ****

return 0;
}

Comments

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

Answer 9

內容已隱藏
*  ** * **  *** * ***
*    *   **  main(){
int a,b;

 **   * * **********  ****  ***   * ***  ***  **    *       ** * *** * * ** * 

**    *** **** ** **  * *   *  * ***      *   ****  * * 

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

內容已隱藏
#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