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

Comments

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