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

內容已隱藏
#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

內容已隱藏
#include <stdio.h>
int main()
{
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** ****** *  * *       *** ****   second_number;
*  *  *  **  *  * ** * ** **** * swap;

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*  ** **  *   * **** **  ****  *** *            *  * *
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}

Comments

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

Answer 3

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
 ** *** ** *    * * ** * 
 *  (){
   **  ** **
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     *            of x= %d and the   * of y *  *    * * ** 
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   *   0;
}

Comments

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

Answer 6

內容已隱藏
 *   *** *       *  *  
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

內容已隱藏
* * * *    *  *****    * 
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

內容已隱藏
   *  * ** *  *  **** *
 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

內容已隱藏
* **** ** **  ** * **
    ***  main(){
int a,b;

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

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

return 0;
}

Comments

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

Answer 10

內容已隱藏
#include <stdio.h>

int main(){
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**** *** * **   *  *  **  x,y,temp;
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* * *      *  *****  **  **  * * = x;
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** *  ** **  *  *** ** *** ** *  *  **   ** **  *  * x,y);
***  ** * **     * *      *
**  ** * ** * ** *** * ** *  ** 0;
}

Comments

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