10-19 Exercise 3: Prints the number with its digits reversed

Question

Write a program that input four-digit number, then prints the number with its digits reversed .

寫一個輸入4位數字，反轉輸出這個數字的值

Example input: 

5455

Example output:

5545

Example input: 

5400

Example output:

45

Answer 1

Hidden content!
#include *  *  ** * ** * *   *
int main()
{
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*  * **  *    *** *  *    0;
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}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

Answer 2

Hidden content!
#include ** * ** **** *** 
int main()
{
    **  *** *   * *  * * *   * n, reversedNumber = 0, remainder;

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*  *  ** *      **     ***  *   *   * *   **   *  * &n);

** * **  *    *  *  **   ***    *  * != 0)
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(void)
{
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    {
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}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
Case 5: Wrong output

Answer 4

Hidden content!
#include<stdio.h>
int main(void)
{
**** * * *** * *** *   * *  * * * tab[5],i;
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**   **    * ***** *** * ****
*  ** * * * *** *     ******** 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
Case 5: Wrong output

Answer 5

Hidden content!
#include * *  ** *  *
int main()
{
* *** *    *  *** ** *  ** *** n, reversedNumber = 0, remainder;
 **   **   **       ****  ** ** *  *** *    * &n);

* * *  **     *** *  *** *** ****     != 0)
**** ***  * ** *  *  ***** 
  ** *  * **** *** **** ** *   ****    ** *   *** = n%10;
*****  *  *  **   * ** *     **    *  *  *  * * *  * *** *    = reversedNumber*10 + remainder;
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 *  ******  * * **      *  *  **  * *  *  *  reversedNumber);

 **  * *   **    ***  ******  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

Answer 6

Hidden content!
#include <stdio.h>
int main()
{
**** * * *   **  *  *  a,b,c,d,rev;
***   *   *  *** ****  * * **   **** * * ***  * ****** *     *   * *    *
*   ***  **  * * *     **  **   * *    ***  
*   **   ****    * ** ** **  *    *     * **  * * * 
**** *  * *****  * *****  ** ***   * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

Answer 7

Hidden content!
#include <stdio.h>
#include * *** *   **  * *

int main()
{
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* **  *** * *  *****  *    **** ** *****  &n);

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*   **  ******    * *****    ****
* *** **  ***     **   * ***** ** *  * *** **** ** ** **** *** = reverse * 10;
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 *     * **    **    ***  * * *    * *  **  * * ** ***  ** **   * *** ** **  ***  * **  *      *  ** * n/10;
 * *   * * *      ** *  ****

* *  * *** * ****   *  *  * * ****** *    * reverse);
*** ** ***     *  *   * * * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

Answer 8

Hidden content!
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int main(void){
int num;

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while(num!=0){ *  *   ** *** 
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num/=10;  ** **  * * *    * ** *   * *
}
** ** **** * *********
return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
Case 5: Wrong output

---

-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
Case 5: Wrong output

---

-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
Case 5: Wrong output

Answer 9

Hidden content!
#include<stdio.h>
int main()
{
*** * ** *   * * ** *******   * * * a,b,c,d;
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* ** * *  * * ** **   *  **  *** if (d==0 && c==0 && b==0 && a==0)
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 *** *   ******* * ***    *   
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output

Answer 10

Hidden content!
#include<stdio.h>
int main()
{
**    * ***  ***  *  *    *   a,b,c,d;
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** *    ******* * **  *** *  **
* * *** ** *  **      * * **  ***** if (d==0 && c==0 && b!=0)
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*   *   **   *  * **  *****  if (d==0 && c==0 && b==0 && a!=0)
 **  **    **  *  ** *  * **** ** 
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 *** *** ** *    ** 
*   *** **       *  **      if (d==0 && c==0 && b==0 && a==0)
 *    ****** **  * *  *** 
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**  ** *  * ** ****** **
  *    * * *    *********  *** if (d!=0)
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*   **  * * ** * ** * ** *  ***  * ***  * *   * * * * ****    *        * ***** *   * * *  
  *  *****    ** *  ***    
}

Comments

prog.c: In function 'main':
prog.c:20:16: warning: too many arguments for format [-Wformat-extra-args]
         printf("&1d",a);
                ^~~~~