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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#include<stdio.h>
int main(){
   * ***  ****   ** * ****  * ** a,b,temp;
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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

內容已隱藏
#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

內容已隱藏
*  ** *  *   **** * 
**   * (){
* * ** * ** ** 
  *   * ** ** **    **   of x and y:    *** *  *
** **** * **** ***  ***** * * ***    
  ** *   ** *    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

內容已隱藏
  **   ** ** **  *  *
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

內容已隱藏
  * ****** *  * *
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

內容已隱藏
**  ** *     ** *
 int main(){
int a,b;

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

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

return 0;
}

Comments

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

Answer 9

內容已隱藏
** *  *****   *   **
*  * **  main(){
int a,b;

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

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

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

內容已隱藏
#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