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