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

Comments

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