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

---

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

 ****      *     **   *       ****       **  *      *     *  * **  ** ***

* * ** *  ***** *  * *      *  *   ** ** **    **  *** *

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;
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*   *** **  **  **  *** ***
  *  * *  *    **  *  *   *   0;
}

Comments

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