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;
**   *  **  * ****   * *  *** 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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** *     
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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;
 *  * * *** ** * ** **  *  * 
**   ***  *** * *   * **
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;

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

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

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

Comments

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