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

2 like 0 dislike
20.6k 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 | 20.6k 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:104.23.243.165
©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 | 20.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users