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()
{
*     *       *** *   **   **   first_number;
***   *****   ***    **  *   second_number;
        *   *  ** ** *  swap;

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}

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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*** * * * * * *    * of x and y: ****    ***
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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;

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

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

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