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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}

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

Comments

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