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

2 like 0 dislike
18.7k 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 | 18.7k 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:172.69.7.78
©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 | 18.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users