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

2 like 0 dislike
18.9k 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 | 18.9k 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:172.69.59.247
©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 | 18.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users