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()
{
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**   ****  * *   *    *  **** swap;

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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

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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

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  *  *****
{
 ****      *  *  a,b,swap;
* ** **  *   ** **  * ** * *  
*  ****   * * *  *    *  * 
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;
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**      *  *  *    
 *  **    *   **  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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 ****   *   * *  **** **** ** x,y,temp;
**   ***   * ** * ** 
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***   *    *   * * *** **    = x;
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** ** **   ** **    **  * **** ** *       **   *  ***   *  x,y);
  *  * ** ** **** *  ****  
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}

Comments

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