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

2 like 0 dislike
21.3k 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 | 21.3k 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:104.23.197.65
©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 | 21.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users