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()
{
**    **** *** * * *  **   * first_number;
** *  * **  * **** **  **  * 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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*  * *   ** **   * ** of x and y:  ******* 
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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;
 **  *  * *   ** ***  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!
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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;
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**  * **** *   * ***   * **  * * *     ** **  x,y);
   * * *******   * * *   * ** 
 **    ** **** **** **    *   *   *****   0;
}

Comments

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