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

2 like 0 dislike
23.6k 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 | 23.6k 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:104.23.243.108
©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 | 24k views
12,783 questions
183,442 answers
172,219 comments
4,824 users