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:104.23.197.64
©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 | 22.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users