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

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

Comments

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