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

2 like 0 dislike
10.6k 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 | 10.6k 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:172.70.131.161
©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 | 9.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users