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()
{
* * *   **   ** *    **  *  * first_number;
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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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** ** 0;
}

Comments

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

Answer 6

Hidden content!
*   *   **  **   ****  *   *
int  *** 
{
*   ** * * **     a,b,swap;
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swap=a;
a=b;
b=swap;
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* *   * *  ** *** **
 * * *    ** **    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;

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

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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*  *  ******  **   ****  ****
  *     ******* *     *** ** **  0;
}

Comments

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