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

2 like 0 dislike
12.6k 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 | 12.6k 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:172.70.130.207
©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 | 11.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users