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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** *    *    ** ** *** *  swap;

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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

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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

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

Comments

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

Answer 7

Hidden content!
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main()
{
** * ** *  * *    *****
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 * *   *     **    *        ** 
swap=a;
a=b;
b=swap;
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***  ** ****     
*******   * * * ** 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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*   *  *   *    *** * ** **  = y;
* ******** **   * *** *** = temp;
* * * * **  *** *****  ******
* *  **  ** ** *** ****   ** ** ** * **** *  *  x,y);
 *  *  **** ** **** * * *
** *   * ***   *    ********      0;
}

Comments

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