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

Comments

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