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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* *    *      ***   ** *
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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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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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** * **
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***   **
 *     *    *  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;

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

Comments

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