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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*  ****  ** * *******      * * 0;
}

Comments

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

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
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  *    ****  ** *  **** *   **   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!
** *    ** ** *  **   *
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* *  *    * * *
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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;
 *  * ****  **  * *       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;

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

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

Comments

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