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

2 like 0 dislike
22k 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 | 22k 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:104.23.243.109
©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