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

Comments

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