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()
{
  ** * *  *** **    ***  * * 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

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   0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
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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 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!
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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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*  * *   *** * *     ** ** ****   * ****    *   *   x,y);
***  *  *****     ** * *
  **   *   * *  ***** **** *   0;
}

Comments

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