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

2 like 0 dislike
20.9k 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 | 20.9k 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:104.23.197.211
©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 | 21k views
12,783 questions
183,442 answers
172,219 comments
4,824 users