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

2 like 0 dislike
22.7k 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 | 22.7k 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 | 23.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users