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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}

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

Comments

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