2 like 0 dislike
18.9k 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 | 18.9k 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:172.69.7.60
©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
| 18.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users