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

2 like 0 dislike
24.1k 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 | 24.1k 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 | 24.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users