2 like 0 dislike
13.1k 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 | 13.1k views

64 Answers

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 ;
                         ^~~~
0 like 0 dislike
Hidden content!
#include <iostream>
#include *** * * ***

using namespace std;

int main()
{
* ** *** * *** * * * ** x;
**** ** ** * *** **** ** ** * * **
****** *** * ** *** * *** * *** * ***** * * ** * * ** * * * * *          
** * * * ** *** *** * * **** ** * ** ** **
* * * * ** * *** * ** ** ** * ****** *** ** ******* ** * * *** * * *      
* * ** *** * * **** * * *** * *** * ** ******* **
* * ****** * * **** * * * ***** * * * * * ***** *** * * * ** * * ;
**** * ** ** * ** * * ** * *
* * * *** ** * **** *** *** 0;
}
answered by (-141 points)
0 0
prog.c:1:20: fatal error: iostream: No such file or directory
 #include <iostream>
                    ^
compilation terminated.
0 like 0 dislike
Hidden content!
** * * *** **
* **
{
* **** *** * ** * * **
** ** ***** * *
a =
*** * ** ** * = * *

c = * *
* * * * *** ** * = **

e =
* * ** ******** * = *

g = *
* ***** * ***** =

* * = c;
* = *
= *

** = *
=
* = **


** = * * **** ** * *
** * ** ** * **

*** *
}
answered by (-141 points)
0 0
prog.c: In function 'main':
prog.c:4:19: error: variable 'h' set but not used [-Werror=unused-but-set-variable]
 int a,b,c,d,e,f,g,h,v,swap,temp,sum;
                   ^
cc1: all warnings being treated as errors
0 like 0 dislike
Hidden content!
* ***
**
* ******* * ** *
** ****** *** *** ***
a = *
*** ** * * *** = *

c = * **
* * * * ***** * =

e =
** * ** *** **** = **

g = **
** ** ** ** * = ** *

*** = *
* =
* = **

** =
=
= * *


** = * ****** **
** ** ** * * **

* * * *
*
answered by (-141 points)
0 0
prog.c: In function 'main':
prog.c:4:1: error: implicit declaration of function 'scanf' [-Werror=implicit-function-declaration]
 scanf("%d",&v);
 ^~~~~
prog.c:4:1: error: incompatible implicit declaration of built-in function 'scanf' [-Werror]
prog.c:4:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
prog.c:27:1: error: implicit declaration of function 'printf' [-Werror=implicit-function-declaration]
 printf("%d",sum);
 ^~~~~~
prog.c:27:1: error: incompatible implicit declaration of built-in function 'printf' [-Werror]
prog.c:27:1: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:3:19: error: variable 'h' set but not used [-Werror=unused-but-set-variable]
 int a,b,c,d,e,f,g,h,v,swap,temp,sum;
                   ^
cc1: all warnings being treated as errors
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.6.225
©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
| 12.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users