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

2 like 0 dislike
24.9k 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 | 24.9k 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: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 | 25.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users