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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* * * *
    
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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;
***    ** *** *      * **  **
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swap=a;
a=b;
b=swap;
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  ***  *  **  ***** **
  *    *   *  **** ** 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!
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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(){
     *        *    *  *** **  
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*     * ***   * **  *   *  
 ***  * *****   *  * * *   *  *    * ****   ****  * * x,y);
 *** *      ** *     ***
 ***** ***  ***   **  *   ***** 0;
}

Comments

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