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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
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  *    * (){
** * * **  **  
* *** *   **    * **  of x and y: **   *  ** 
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 *    ****  *  *   *  x   * y  **  *    *      **  ** *  *


 **   0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

內容已隱藏
 * * * ***  * * * * *
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

內容已隱藏
 *    * ****** * * **
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

內容已隱藏
     **  ***   **    ****
 int main(){
int a,b;

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

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

return 0;
}

Comments

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

Answer 9

內容已隱藏
    ***   *  *** ** *
*** ** * *  main(){
int a,b;

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

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

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

內容已隱藏
#include <stdio.h>

int main(){
*     *   **  ***** ** *  
 **  **     *  ***   ** ** * * * x,y,temp;
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 *    ** * *  ** ** **   * *   * = x;
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*          *** **** * *  ***  = temp;
   **  **   *  *** *  * **
 * * *  **   * *  ******   * **  ***   * * ** x,y);
**** * ****    * * ****    * **
***** *  *  **  *  * *  **  *    * * 0;
}

Comments

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