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