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()
{
* * ***  ***   * **  **  *   *  first_number;
**  ****** *  *** **   ** ** * * second_number;
* *  ***  *****    ** ***  * 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

---

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

Comments

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