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:172.71.120.163
©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