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:172.69.7.222
©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