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