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

2 like 0 dislike
18.7k 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 | 18.7k 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:172.70.131.201
©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 | 18.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users