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;
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}

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!
     * *** ***    
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!
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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!
*   * ** ****  **** *
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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,temp;
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**** *****  * ***   * * **     *   = y;
**  ****  *   *  *** *** *** = temp;
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*** ** **   *   *   * *******
** * *** ** *   ** * * ** *   ** 0;
}

Comments

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