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

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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!
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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!
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 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);
*  *   **** * ***  *** *  
 *******  *****   ***  **  ** * * *  0;
}

Comments

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