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:104.23.243.108
©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