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

2 like 0 dislike
12.7k 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 | 12.7k 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:172.70.126.213
©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 | 11.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users