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

Comments

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