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

2 like 0 dislike
18.8k 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 | 18.8k 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 | 18.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users