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

2 like 0 dislike
20.7k 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 | 20.7k 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:104.23.197.64
©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 | 20.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users