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;
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}

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

內容已隱藏
**   *** **   *  * **
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

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(){
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*** ** * *   ** ** *  **    **   *  ** **   *    **  x,y);
 ***    * ***   *  ***  * * 
****** *** ***     * ** ** *  **  0;
}

Comments

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