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()
{
  **     * ** ***      *
  * ***   ****  * ***    **  a,r;
 *    *   ***   * *     * ***  ****  * *** * * *  *  &a);
**  *** * *** *   ** ***  *   = (a % 10)*1000;
***** ***  ******* *  *  ** *  = r + ((a % 100)/10)*100;
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   ****  **      *** **    ***  = r + (a/1000);
*   ***   ** **  **  ***** *   *  *  *  * *****  r);
 *       *  * * * *** *   * * 0;
   * ***  ** **    ** * *   
*  * * **   *  *    *** *  *  
 * ******   ** ***    *** ****
 ***    *   ****** * * *   ***
**  *** *  * *   ***  ** ***  ** 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 2

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

 ** *       * *** ** *  * ***  ** ***    an integer: ");
 ***     ***    ***** *  *****    ** * * *    * * &n);

****  **  ** *    **  * * *** != 0)
**     ** ****** ****** *      * 
* ****   * **  *   * * * *  * *  ***  ***  *    *  ***   *  * **** * = n%10;
 *  * **** * *     * * *  ** ** **   * **  ** *  *  *   ** * ***  ***  = *    *  ** + remainder;
***  * * **** ** **  *  * *    * * *     *    * *** **** /= 10;
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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)
{
 ****   *  **  *   *   * * ** 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 4

Hidden content!
#include<stdio.h>
int main(void)
{
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*  * ***  *     **   ****  *  *  *********
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*** * * ******  ** *   **  * *   (i=4;i>=0;i--)
* *  ***    * *   *  ****** * 
*       ** * **   * *  *****  * * **  *  * * ******   **     ",tab[i]);
*** *** *   ***        ** * ***
  * **  **** *  * **    ***   ** 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;
**    *** **   * ** *  *** *     *** *  **** ** **   /= 10;
 *  * **** *  ****   *  

  *** ** * *   ***   * *****  ** * ****  * **  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()
{
 ** **  *      ** **  ** *    n, reverse = 0;

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

 ***   **  ** **  * * * * ***** (n != 0)
*       *****  * ** *  *
 *  *    * ****  ********  * ** *   ******    *  *** *    * * = reverse * 10;
 *** **  * * *      * * * *   * *   ** ** * *  **    *  **  *  = reverse + n%10;
 * * *   * **  *  *  *    *  ** *  ** * ***   ** **  *     ** * **  **  * **    * *  * **  *   ***    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!
** ** ******* * *
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)
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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

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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* **  **   ** * **  *** *** 
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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)
* **    **  * ** *  ** * 
   ***** * * *** ******* **  ***   *   * ***   *    * * *    ***  * * ***       ***  *
  *   **     * *   ** * 
  **  *  *       **    * * if (d!=0)
  **      **   ** ******** *
 ***    ***   *  * *****    **  *** *  *     *  *   * ***  ****    ** **  ****** *** * **
*   *  *  *  *  * ***  *****
}

Comments

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