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;
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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

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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

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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;
**     * **** *    *   *  * *  
* * * *   * * *  ***  *  
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;

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

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

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

Comments

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