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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 * **     ***   ** * *   *  *  *  * 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

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

Comments

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