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:104.23.197.65
©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