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

2 like 0 dislike
20.7k 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 | 20.7k 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:162.159.115.31
©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 | 20.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users