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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   *** 0;
}

Comments

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

Answer 6

Hidden content!
* ** * *  **** *  *  
int ****   
{
   *  *** ** a,b,swap;
** *  ** **** * *   ***   
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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!
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 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;

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

Comments

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