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: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 | 24.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users