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

2 like 0 dislike
23.6k 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 | 23.6k views

64 Answers

0 like 0 dislike 
Hidden content!
*   *  *     **** *** *** *
int main()
{
   * * *** ***  ** * a,b,c,d;
   **  ***  ** *     ** *****   * ** **** *  * ** **    *  * ** *  *
  *** *  **  *    
  {
** *  *** * *  *  ***  ** * * * ** *    * **** *       * 
  }
**   *** ******* 
  {
 ****   * *   ** *  ****  *****     *    * * *    *** *   *
  }
* *** ** *      ** 
*  ***  **
* *   *   *** * **** **  ***** ** *** *    *    * **   * ** 
  }
*   *  **** **** * *
  *    ***   ** **
*        * * **   * *  * * *  ********  **  *  * * *** ** *  **   
  }
 *   ** *   *** ** 0;
}
answered by (-255 points)
1 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 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(){
 **** * ***  * **  ******* * *** str[4];
  ** ** * ** *  * **  * *   ** *   * ****  *  ** ***  ** 
   **** *   ***  **    **  ***
   *  *  ** ** * * * ** *   ** *  **  *    * * 
***********   ***  *    ** 0;
}
answered by (-116 points)
0 1
prog.c: In function 'main':
prog.c:5:13: error: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[4]' [-Werror=format=]
     scanf("%s",&str);
             ^
prog.c:6:5: error: implicit declaration of function 'strrev' [-Werror=implicit-function-declaration]
     strrev(str);
     ^~~~~~
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>

int main()

{
 **  *   ** * * * *  ****  a,b,c,d;
 ** ** ******* * *     ***  ** ******  * *  * * ***** ***       *   * * ****** **

 **  *** **  *  ******   *   *    * (d!=0)
*     * * * *****      * * *** * 
* *  *   ***** *  ***   *** *  *** ***  ***   *** **       *****  * **  *    * 
    }

    *  **** *   *  *  *  *   (c!=0)
** * * *  *  ** * *   *     
 ***** ***     *   * * *  ******** *  *  ** *  * * *  (d==0)
 * * **  *   ***      *    **** * *** *       * ** *   *  ***  * *      * * ***   *
 * **  **  ** *   * * **  

     *      *   **    ****  *    (b!=0)
 * * ****** ********  ** **  
* *    *  * * ** * *   * ****** * ****    ****  * * (d==0 && c==0)
  * **** ** **   *** *      *   *  *   ***  * *** *  ***  *   *  ***
    }



* *  ** * ***** * **  **          0;
}
answered by (-249 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   *       * *
#include **  * *   *      

int input[4];
int digit;
int output = 0;
int i;
int main(){

*   *   *   *    *  *  * * * **  * *      ** ** *   *  *  ** *  ** * *   ****   ** **     * *       * *

* *  **** * ** * ****     **   += input[0]*1;
  ***  * **  ******* ***  *  * += **** ** 
  * **** **       ***** **  * *  *  += * ****  
 *   ** **  * ******* *     *** * += *     * ***


 ******  * ***    *    * *  ***** ** *  *  *  *  **       
***      ** ******* **       0;
}
answered by (-286 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 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  * *   *  *   *
#include *** * ****** ******

int input[4];
int digit;
int output = 0;
int i;
int main()
{

 * * *  *     ***  *   * *** * * * **  *   *  **  * ***     **    ******       ** ***    * *** ** *******

*  ** *  * **  * **** *   **   *  **** *** *
   *     *****     *  * ** *     ** *** *  * **  *  * ** **  += input[i]*pow(10,i);
 **   **     **  * *  ** ***   

 **   * *****   ** * ** ****    **    ** **** **** ** 
    *  **** *  ***   * * **  * 0;
}
answered by (-286 points)
0 0
prog.c: In function 'main':
prog.c:14:28: error: implicit declaration of function 'pow' [-Werror=implicit-function-declaration]
         output += input[i]*pow(10,i);
                            ^~~
prog.c:14:28: error: incompatible implicit declaration of built-in function 'pow' [-Werror]
prog.c:14:28: note: include '<math.h>' or provide a declaration of 'pow'
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
*** * **** *   * *** * **   a,b,c,d;
* **      **      *   *    * *   *  ***       *  *     * *       *  *  *  *****  * * *
    if
 ***  * **  * ** ** **   *    *  ***   ** ****  ***  * **  **  && c==0 && d==0)

 ***   *** ****  ** * *    **     *  ****** * * ** *   **  ** ********

 * ** * * ****  *  *  *  ****  if

 **** ***    *     * **** **  * * * ****   **  **** ** ***  && d==0)

* *** *  ***    ** ******** ****  *  ****  **  ***  *     ** *  **** *  **  * *     ** * 

 * *****  ***  ** * ******    if

 ****      ***    * *   ****** *** * *  *****  **

  ** **  *   *  *   *  **  *  * * *   *****  * * **  *****  *** * * * *      * ****  ***

 * ***       *** *      ***  

**   *** *   ****** **** *     * *   ** ** * ** *     ** * ***  ** * **** *    *  * *****

   * *    * **  *** **  ***    * 0;
}
answered by (-196 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 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 *      * *   

int main()
{
 *  *** *  a, b, c, d, e, f, g, h, x;
 ** **  *  *   * **    * ** *  ** * * &b *  *   **  *   *
 *  *  *   *** *   **    *
   **   * *  ****  **
  *  * ** **   
 **** * ** *
  * **  * *  * * * **
  *  ** *  **   *   * * *   
* * * * * **  0;
***  * ***
answered by (-66 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 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 **     *   ***
int main ()
{
 ** *    *  ** **  *****  *  ** n, reversed_number = 0, remainder;
 ****** **   *  ******  **  ****  **    *  *  ** &n);
   ** *  ** * ** ** *  ***  ** (n != 0)
*   * ** *  * ** *** *  *  ** **
  *  ** *     ** ** *  * * ** * *** ***    ** * ***** *   = n%10;
*      ** * ****   ****  **  * *  **** ******* ** ** **    ** =  *       *  + remainder;
 * **  * ***  **    **   *   *  ******* *  * *        * /= 10;
*  *       * **  * * *    
*  ***** *   ** *      *  *  *    ** *  **  * **   *  reversed_number);
*    *  ****   *      **  *   0;



}
answered by (-140 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 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   *** 
int num; 

**** ** *  ***   ** 
  *****  *  **  ** **** ***   
* * * * **** *  * * * *  * 
***   *    
* *  ****  ****   * ** * 
*  * *
} 
 *   *  ** ***  **** ** 
return 0; 
}
answered by (-141 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 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 <stdlib.h>

using namespace std;

int main()
{
*   * *     **      **** * **** *    x;
 ***  *** *  *** **    ** * ** * * **  * 
 *****    **  ***     ******* *  *** **    * **   * * *           *  ***  *   ** **** ***           
 ***      * * * ** **       ****  ***  * *  *  * *   *  *** * *      **    **  ***
 *    * * **  *   * *  *  * ** **   *** * *   *   *  ****   * * ***** ****      **    *******         
***     * *****   *   ***  *  * * * ** * * **** *  ** ******
*******  *       * ** **      * * * *   ** **  * ********** *  ****  * **   **    **   *  * ;
*   **********  *****  ***
 ***         ****    **  * *  0;
}
answered by (-141 points)
0 0
prog.c:3:1: error: unknown type name 'using'
 using namespace std;
 ^~~~~
prog.c:3:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
 using namespace std;
                 ^~~
prog.c: In function 'main':
prog.c:7:5: error: unknown type name 'string'
     string x;
     ^~~~~~
prog.c:8:11: error: 'cin' undeclared (first use in this function)
     while(cin>>x){
           ^~~
prog.c:8:11: note: each undeclared identifier is reported only once for each function it appears in
prog.c:10:24: error: request for member 'length' in something not a structure or union
         for(int i=0;i<x.length();i++){
                        ^
prog.c:11:22: error: request for member 'length' in something not a structure or union
             re[i]=x[x.length()-i-1];
                      ^
prog.c:13:9: error: 'cout' undeclared (first use in this function)
         cout<<atoi(re)<<endl ;
         ^~~~
prog.c:13:25: error: 'endl' undeclared (first use in this function)
         cout<<atoi(re)<<endl ;
                         ^~~~
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.243.109
©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 | 24k views
12,783 questions
183,442 answers
172,219 comments
4,824 users