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

2 like 0 dislike
17.1k 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 | 17.1k 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:172.71.255.50
©2016-2025

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 | 16.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users