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

2 like 0 dislike
20.9k 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 | 20.9k 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:104.23.243.77
©2016-2026

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 | 21k views
12,783 questions
183,442 answers
172,219 comments
4,824 users