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

2 like 0 dislike
22.2k 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 | 22.2k 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: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 | 22.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users