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!
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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;

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

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

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