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

2 like 0 dislike
17.3k 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 | 17.3k 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:108.162.241.185
©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 | 16.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users