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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}

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!
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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;
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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;

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

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

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

Comments

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