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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**  **  *  ******     * 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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* * * *
*** 
* * * *
** **  ***    x  * y      * *   *** ***    


**    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;
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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;

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

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

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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 * **  ***** *****    *   *   = x;
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**   *   ***  * * *  *  * = temp;
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 * **  ***  **  ******   *****
  ***    *   ***** *** *** * *  *     0;
}

Comments

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