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()
{
** *    *  ***   ** **   **  * *  a,b,swap;
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 *  **  * **  **     *    * **  * 
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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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*  **   *      ** ** * * ** *  * ***  **   *** );
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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;
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*  *   ** *   ***   **** = temp;
****   *  * ** **** ** * 
*      ** *   * *  *  * * ******** ****   * **** *  ** x,y);
** * *** * *** *  ** *   *
**** **  ****** *  ** ***  * * *** 0;
}

Comments

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