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

Comments

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