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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}

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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}

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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return 0;
}

Comments

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

Answer 5

Hidden content!
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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;
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   *           *  **  ** 
* ****  * ** **  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;

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

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

Comments

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