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()
{
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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

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
 * **  *  * *   **    
     * (){
* * * ** *  
** *  ****  * *   *  of x and y: ***  *** *
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***
    
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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;

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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;

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

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

Comments

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