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

2 like 0 dislike
16.3k 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 | 16.3k 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:172.69.59.82
©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 | 15.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users