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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**  *    *****   ** *   * *** *  *  second_number;
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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

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

Comments

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