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;
* * *  *       *  * *  *    ** * 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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 * ** 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;
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***  **  **  ***** *  
**  *** *    *    * 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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* *    **  *** ******   *   * = temp;
*** **   ***  **** *  * 
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 * *     ** *** * ***  * *** 
  ***  ** **  *** * * ** *   *** 0;
}

Comments

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