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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}

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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}

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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*     0;
}

Comments

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

Answer 6

Hidden content!
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int         
{
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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!
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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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* *** **** * ******* ** *  = temp;
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** *    ** *** * * **** **  * ****  ***   *  * ** *  * * x,y);
* * ** *     **  *** ** *  **
  * *  **  **    *****  * ** ** 0;
}

Comments

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