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

2 like 0 dislike
23.7k views

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
[Exercise] Coding (C) - asked in Chapter 4: Expressions by (12.1k points)
ID: 27669 - Available when: Unlimited - Due to: Unlimited
edited by | 23.7k views

64 Answers

0 like 0 dislike 
Hidden content!
#include   *   *    **
int main()
{
 **   * ** **    *  ** * 
* * *** ***   * **   **** * *** a,r;
 * *  ****   **  *****  * * *  ***  ****  *   *  ** &a);
  * *  ** *  *** *   *** *    = (a % 10)*1000;
****  ** * **     *  *** *** = r + ((a % 100)/10)*100;
****    * ***   * *  **  *  **  = r + ((a % 1000)/100)*10;
 * * *   **** * *   **   = r + (a/1000);
  *** *   ** ***  *  * ***** ** *** *  * ** **  r);
* *  *   * *      ***       * *  0;
* *  **  ****** * * **  ** *
   ** *  ****  *  *  * * * *  
**** ***** *    *  ****      ** 
  *       **   *  ****     *
*   *  *  ** ** * **       *    0;
}
answered by (-168 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include *  *   **** **** *
int main()
{
** * *   *     ***      * *** **  n, reversedNumber = 0, remainder;

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

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

** ** * ** * * ** ** **  * *    * ***     **  * ** ****  * * *  *  
return 0;
}
answered by (-167 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
  * ** *   *  ***  ******  *   * *  tab[5],i;
***  * *    * * *   * **  *  ****   *  ***  
 ***  *   * *   * **  **   *   
** ********     * * * *  ** *     * *  *      * ** **     *  * **  *** * **  ******* * 
**** * ****  *** *    **     *
 ****     ** *  ** * **  (i=4;i>=0;i--)
    {
*  * * *      **  *  * *   *** ***  *  * * *** *  *** *  *  ***    * ******
   **    ***    * *    * *  *
**  * ** *  * * *     * *  * * 0;
}
answered by (-168 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
Case 5: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
  * * *   **** **** * ******  tab[5],i;
* * *  **** ******* ***   * * ***** *
 *   * ****  ** **   * *  * 
***   *      *    *   *  *****     *          **** *   *   ** **** *** * * ** *    **
 *       **  *      *   ** 
   *   ** * * ** * * ** **    * (i=4;i>=0;i--)
  ** *****      *** *** ******** 
  **   *** *  ** ***    ****** **  * *  ** ** **  *   * **  ** *  *    ",tab[i]);
*** * **  *  ***      **  * *  *  
** ***** *** *  ** * **  ***** 0;
}
answered by (-168 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
Case 5: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include     ** *  **  * 
int main()
{
**** **      ****  *  **** **  n, reversedNumber = 0, remainder;
 * ** *    ***** *** * ** * *   ** *** **   * &n);

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

* ****      **** * * *** ***      * *****   ***   reversedNumber);

 ** ** *  *   *   * *      ****  0;
}
answered by (-233 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
 ** * **   ** *** a,b,c,d,rev;
* ***  ** *** *****  ***  ** **   * ******  *  ****   *  * *  * *
* * **  ******   * * **  ** ****** ** 
* * * ** * *    **  ** *  *   *   ** **     * *
* *      * *** * **  *** * 0;
}
answered by (-32 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output
commented by (4.3k points)
0 0
-----------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
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include  *  *  **** ******

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

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

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

  *** **** * ****     * **** *  **   **  *** ** reverse);
 *  ** * * **  *** *     * * * * * * 0;
}
answered by (-168 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output
commented by (4.3k points)
0 0
-----------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
commented by (4.3k points)
0 0
-----------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
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
**    * ** **   * * **
int main(void){
int num;

*****  *** *    ** * *   **** 
** **** *** *   * ** * ** 
  ***    * **      * *** *  
while(num!=0){ *  ** *  *** 
* * *** *   * *    ***  **      **  ****   *    * *    *    *  
num/=10; ***   ** ** * ***     **   *   *
}
** *   ** *   *  *  
return 0;
}
answered by (-32 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
Case 5: Wrong output
commented by (4.3k points)
0 0
-----------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
commented by (4.3k points)
0 0
-----------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
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main()
{
* *  *** ** **    *********    a,b,c,d;
 *   **     * * *      ** *****     * *** ** *       * * **  *****  * * *   * *  ***
*     ***  **  *  *****    *  **  (d==0 && c!=0)
**   *  ***  * **  **   * 
 * * ****  ** **  * *  **** ****   ****         * *     ** ** * * *** *   **    ****
****** * *  *     *  **  *
**   * *   *  **     ******   if (d==0 && c==0 && b!=0)
  * * * ** * *****  * * 
  *   * * **  *    * * * * *** * ** * *  * * **  *  ** * ****   
 * ** *  *    **    ** * **   
  *   ***  *   *   *  * if (d==0 && c==0 && b==0 && a!=0)
   *   *  ***** * *  * *****
 ** *   **  * **  * * * * *   * ***      ** * ****  * * *    ***** ** 
*    **      * *   * * ** *
 *  ***     *  *   * ** * *  * *  if (d==0 && c==0 && b==0 && a==0)
 ** ***  *  ****  ** * * *** 
*   ** *      * *** * **  **** * ***** *     ** * * ** **   ****     *** **  *****  ** ***
* * * **    ** *** * *** * 
  *  ** **    * ***      *  if (d!=0)
 * ** * ****  **  * *     
  *  ** **   ***   * ********  * ** *  ***  ** *** ****  *   ******        **  **** **  *
 ***    ***** * ******    
}
answered by (-214 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Case 5: Correct output
commented by (4.3k points)
0 0
-----------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
commented by (4.3k points)
0 0
-----------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
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main()
{
*       ** * * *****   *  ****    a,b,c,d;
  * ** ****  *    **** ** ***   * *   ** *      *** *    *** ***  * ** ** * 
**   **     * *  ***     * (d==0 && c!=0)
  *** ***  * * ** *   *  **
*  **   *********** ** * *  ** ** *** *** ** ***** * ** * *    ** **  * * *    *  ****
 **** *       * **  ** *** ** * *
**  ** * *  **  *** * *    **   * *  if (d==0 && c==0 && b!=0)
*      *** **  * *   ***   
 * *** ***** ****  *** * **  *****  * *  *  *    *    *      *  *** ***   ****** * * ***
 * * ** **   **  * * * *   ** 
 *   ** * *  *  ******** * **      * if (d==0 && c==0 && b==0 && a!=0)
**  ***** *   **** 
 *     ****   ** * ** * **  * * * ***  ** ****    *  ** *  *  ****   * *   
  * *** ** ********  *  * 
 **  ***  *** **     ***        * if (d==0 && c==0 && b==0 && a==0)
 ** *********  *   *   * ** 
* ** **   *** **    *   ******** ** *     *********   *    * ** ***     **  * *  
* *** ***  * * *   ** **
***  * * **   **  ** * **  ** if (d!=0)
       **** *   ** * **
**** *     ***** * *** *  *     **  *   * ***   **   *  ***  **  * **   * ******  **** 
** *** **  ** *****  ** * 
}
answered by (-214 points)
0 0
prog.c: In function 'main':
prog.c:20:16: warning: too many arguments for format [-Wformat-extra-args]
         printf("&1d",a);
                ^~~~~
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.243.108
©2016-2026

Related questions

1 like 1 dislike
85 answers
10-26 Exercise 2: Displays the number of its digits and their sum
[Exercise] Coding (C) - asked Oct 26, 2017 in Chapter 6: Loops by semicolon (5.2k points)
ID: 28914 - Available when: 2017-10-26 18:00 - Due to: Unlimited | 24.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users