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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}

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

Comments

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