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

2 like 0 dislike
22.2k 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 | 22.2k 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:162.159.115.9
©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 | 22.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users