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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* ***  **        ****   * *  second_number;
*       *  **** *  *    * * **    swap;

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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

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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

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 * **  0;
}

Comments

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

Answer 6

Hidden content!
** **   * ** * ** 
int  **** 
{
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*****   *  ** ****  **  ** 
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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

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

Comments

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