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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*   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;

 **   * **  * * *    *   * **   *    *  ***  *  * *  *  ** ** **   *     *  *

**  ***     *   ***  **    ****    ** * *  ***  * *****    **  

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

Comments

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