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:172.69.59.98
©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