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

2 like 0 dislike
10.6k 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 | 10.6k 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:172.70.131.161
©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 | 9.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users