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()
{
** * **  ****  ***        a,b,swap;
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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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**     **       **  *  *   *** *  * 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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 * ** (){
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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;

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

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

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