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()
{
*  **   **     *  **      ** * * a,b,swap;
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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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}

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;
* *   *** **   *   ** 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!
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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!
* **        *** *  
  * ** 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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* *** **  ** ** ***   *      = temp;
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**  **   *    * *** * * **  
**** *   * * * **  * * * *  ** 0;
}

Comments

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