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

2 like 0 dislike
23.7k 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 | 23.7k 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 | 24.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users