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;
* *      ***** **  *******  * 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

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

Comments

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