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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}

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

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
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 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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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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    *** *** ** * * ***** *  * * ** * *  ** * * **** *  *** 
    
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*  *    * ***   * * *** 
***  **  *  * ** *   * *   ** *** * *** *****     ** ** x,y);
*   *****       ** ****  * * * *
*    *  *          **  **   ** 0;
}

Comments

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