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()
{
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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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*  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;
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* *  * ** * ** *   *  *  
  **** *  ***  *  ** 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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*  *      ***  ** * ***   ** **    * *** x,y);
*** *     ** *  **** *  ** ****
*     *   **** *  **  *** *  0;
}

Comments

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