2 like 0 dislike
16.3k 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 | 16.3k 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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 ;
                         ^~~~
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.80.171
©2016-2025

Related questions

1 like 1 dislike
85 answers
[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
| 15.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users