2 like 0 dislike
12.6k 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 | 12.6k 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:172.70.126.62
©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
| 11.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users