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

2 like 0 dislike
20.7k 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 | 20.7k 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:162.159.115.32
©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 | 20.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users