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

Comments

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