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

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

Comments

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