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

2 like 0 dislike
21.1k 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 | 21.1k 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:162.159.115.10
©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 | 21.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users