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()
{
 ******* ** ** *      ******** * *** a,b,swap;
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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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* * ** * ****   ***   * * *   **  *
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**  *    *** *** * *   ****   ** * *     ****      ***
return 0;
}

Comments

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

Answer 5

Hidden content!
 **** *   ****  ****   
**   **  (){
**  **  * * *
 ** *** * **  of x and y: ****     * 
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 *  * *       * ** of x= %d and the    * of y  *** * *  **    
*** * **
**  
 ** *  
*  **** ******  * * 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;
 * ***  * * ** ** 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;
 *  * ** **  **** * ** ** **   
  *** * *   *** **   ***          * ****** ** **  **  *
**  **  **  *** *** * ****  **  ***  * *  ******  ** *   
    
*** *    *  *  **  * = x;
    **  *   * ***    ******** * = y;
 *  * **  * ** *  * *** *   = temp;
**** * *   **  *    *** 
 **  **  * *    ** ****    ** * ** *** *    *  **   *   x,y);
    * *   ** * ****  *    *   
**  **** *  *** ****  **      0;
}

Comments

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