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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}

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;
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}

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

Comments

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