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

2 like 0 dislike
17.9k 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 | 17.9k 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:172.70.50.26
©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 | 17.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users