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()
{
* * * *  *   ** * *     * * ***  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

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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

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!
    *******  *   
int          
{
  ***  * * * **   *  a,b,swap;
  **  *  **  *****   * * **  ***
* **** * *   **     
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(){
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**    ** **  * *  ***  *   = y;
***     * * *   * ****   *** ** = temp;
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*    *   *  ****** ** * ** *
* *  ** **  *   ** *   * *      0;
}

Comments

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