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

2 like 0 dislike
18.8k 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 | 18.8k 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:172.69.7.77
©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 | 18.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users