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

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

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

Comments

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