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

2 like 0 dislike
17.9k 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 | 17.9k 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:172.70.50.26
©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 | 17.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users