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

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

Comments

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