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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**** **** *** *      **** ***  * 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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*   ** 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