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(){
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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:  ** * **
 ** *   **    * ** **  *    **  *    
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**   ***
 **  ***  * *  *   * 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;

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

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;

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

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

Comments

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