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

2 like 0 dislike
18.8k 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 | 18.8k 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:172.70.50.50
©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 | 18.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users