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

2 like 0 dislike
18.8k 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 | 18.8k 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:172.70.50.50
©2016-2025

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 | 18.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users