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

Comments

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