2 like 0 dislike
20.6k 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 | 20.6k 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:104.23.243.164
©2016-2026

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
| 20.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users