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()
{
** **********  ***  **  *   first_number;
* ** **  *** *   *** *      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

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

Comments

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