0 like 0 dislike
5.9k views
 

請設計一個程式,使用者會輸入一個字串,請判斷該字串是否為回文(palindrome)。

 

輸入範例1:

12321

輸出範例1:

12321 is a palindrome

輸入範例2:

apple

輸出範例2:

apple is not a palindrome

[Normal] Coding (C) - asked in 2016-1 程式設計(一)AC
ID: 20482 - Available when: Unlimited - Due to: Unlimited

reshown by | 5.9k views
0 0
Called for Help

31 Answers

0 like 0 dislike
Best answer
Hidden content!
***** * * * * *
*** * *** * *
* ** * * *

#include <ctype.h>

int main(void)

{
*** *** *** **** ***** i,len;
* * *** ** * s[100];
* * ******* ** * *** ** * * **
* *** ** ** * * * * *** * *
* ** * ***** * ** = 0;i < len / 2;i++)
*** * ** ** * *** * *****
* * * ****** ** *** * * * ** * * ** ****** ** != s[len-i-1])
**** *** * * * * * * ** ** * ****** * **** ** *****
* * **** * * * ** * ** * * ** ***** ** * *** * is not a palindrome",s);
****** *** * ** ** ** *** ** * ** ** *** * * * ****
** * * * * * * ** * **** *** ** ****** * * * *** ** ** **
* * **** * *
* * * **** ** * ** * * (i >= len / 2)  
*** *** * * * *** *** ** * ** *** is a palindrome",s);

}
answered by (-124 points)
0 like 0 dislike
Hidden content!
answered by (-276 points)
0 like 0 dislike
Hidden content!
* * ** ** * * * *

** * * * *

* *** * *** * ** * ***



int main (void)

{ ** ** ***** ** **
* * ** ****** * * a,b,c,d,i,k,j;

**** * * **** ** * * * s[99],z[a-1];



***** ** * *** * ******* ** ****** ******* * *

* * ** * * ***** * ** *** * *** *

* ** * ** *** * **
* **** * * * * * * ** (s[a-1]==s[0])

** *** * ** * ** **** ** * ("%s is a palindrome",s);

** * **** * ****

* * ** * ** * ** *** ** * ("%s is not a ** * * *** ** *

* ** * * ** *** * * * *
* * * **** * ** ** * * **** *****


* * * * ** * * * * * 0;

}
answered by (-122 points)
0 like 0 dislike
Hidden content!
* ** * * * *

* * ***** *** ***

* * * * *** * *

** * ** *** * *



int main ()

{ * **
** ** *** * ** *** ** a;

* ** *** *** * ***** s[99];



*** ******* * ****** * ** * * * * * ** * ** *** *

** * * *** * *** * ********

** * ** *** ** ** * * *** ***
* *** *** *** ** * *** * (s[a-1]==s[0])

** * * * * * **** ("%s is a palindrome",s);

** *** * * * * *** **** ** ** **

* * * ***** **** * ***** ** ("%s is not a palindrome",s);

** ** ** ** ***** * * * *
* * ** *** * ** * ** * ******


* * * *** * ** * * * ****** 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
#include * *** * * *

#include * * * *


*** * * * * * * *s)

 {
** *** * * ** * * i, len;


** ** * * * ** * = strlen(s);


*** *** * *** = 0; i < (len /2); i++) {
** * ********* ** *** * * * (s[i] != s[len-i-1])
* * * ******* ********* ******* * **** ** 0;
*** ** * * ** *


* ** * *** ** * ** ** (i >= len/2)
*** * * ** *** * ** * * ** * *** 1;
** * * * ** * * * *
* * ** * * * * ******* ** * * 0;

 }



 int main()

 {
* * * *** * * s[256];


*** *** * * **** * **

** ** ****** * *
*** *** ** ** * * *** * * * * *** *** * * * *
** * * * * * ******* ** ** * **
** * ** *** * * **** ** * * ** ** ** **** **** * is a ** **** s);
*** * * * ** ** * * **
* * ** * * *** ** ** ** * * * * *** ***** is not a * * **** ** ** s);
*** * * ** **

 }
answered by (-143 points)
0 like 0 dislike
Hidden content!
#include  <stdio.h>

#include  <assert.h>

#include  <stdlib.h>

#include  <string.h>



int  main(void)

{
* * ** ** * ** *** * i,j=0,flg=0;
* *** ***** **** **** a[10],b[10];
* ** ** * **** * * ** * **** * *
* * **** ****** * ** * ** * ****
** *** *** **** * * ** * * * ** **
***** * * * * *** ** -1;i--){
* * * * ** ** **** * * * *** ** ***** * *** * **** * *
** *** ** * * **** ** * ** * ** ** *** * **** * ** * * ** * * * **
** ** *** * * * *** ** *** ** ** * ** * ** ** ** * * *** * ***** *
* * *** *** **** * * ** * ***** ****** * *
* **** * ** * ** *
** * * **** * *** ** * * **
*** ***** *** ***** **** ** ** ** * * * * * ***
**** * ** * ** * * * * ****** ** * * *** * ** ** * ** *** * * *** * * * *
* * * * ** ** *** * ** **** ** ** ***** *** * **** **** * **** *** ****** * * *** ******
** ***** ** ** *** ***** * ** *** * ** * ** * * *** * * *** ** *** ** *** ** * * *****
* * * * * * * *** * * ** * ** * ******* * *** * * ** * ***** * * *
** * * ** *** *** * ** * ** * * * ** * ** * **
***** * * ** ** *** ** **

    
* * * * * ***** * ** *****
* * **** *** ** *** * ** *** ** *** * *** ** is a palindrome",a);

    }
**** *** *** * ** *
* * * ** ** ** ****** *** * * **** **** ** ** ** is not a palindrome",a);

    }
** **** ****** * ***** *  0;

}
answered by (-158 points)
0 like 0 dislike
Hidden content!
** * * *** **
*** * * * ** *
* ** *** ** * **
*** * ** * * * *



int main (void)

{ *** * *** ***
*** ** *** * ** * * a,b,c,d,i,k,j;
*** * * s[99],z[a-1];


* *** *** ** ** *** * *** ** *** * * ***
* *** *** *** ** * ******
* * * * ** ******** *
* ** * ** **** ** * * (s[a-1]==s[0])
****** **** * *** ***** ("%s is a * **** * * *
* *** * ** **** *
* ** * * * * * *** * ** ("%s is not a * * * * ** *
** ** ******* ** ** *
* **** * ** ** **** * ****



    return 0;

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include * * * ** **



int main(void)

{
* ** ** * * ** * * *** * s[100];
* *** * * *** * * ** ** i, j, n;
* ** *** **** * *** *****
** * ** * ******** * *** *
* ** * *** ***** *** *
* ** * *** * * * *** ** ** ** ** *
**** ** * ** ** * * * * **** * * * break;
** * * ** ** * *** * *** ******* *
* * *** * *** * ** *** * ****** * * *** * * * ** is a palindrome\n", s);
* *** **** ** * **** *
* ** * ** * * * ** * * ** ** * ** * * *** is not a palindrome\n", s);
**** * * * * * * ** ** **** 0;

}
answered by (-100 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include *** *** *

 

int is_palindrome(char *s) {
* * * ** **** * i, b;
********** * * ** *
** ** ** *** * = strlen(s);
* *** * ** * *** ****
****** ** * ** * = 0; i < (b /2); i++) {
* *** ****** *** ** * ** ** (s[i] != s[b-i-1])
**** *** * * * ** **** *** ** *** ** * ****** 0;
* ** * ** *** * *
* *** *** ** (i >= b/2)
* ** * **** ** ** ***** ** * *** * 1;
**** * ** *** ***
* * ** * * *** * *** * *** * 0;

}

int main()

{
** ** * ** s[256];
* ** * * * ** *
*** * ***** * ***** *

* * ** * * * ** ***
*** ** *** ** * *** ** **** **
** * ** *** ** *** *
* * * * ** **** ** * * *** (is_palindrome(s))
*** ** * * *** ** *** ** ** **** * ** * ** is a * * ** * * * s);
*** ***** * ** ** *** * * * **
***** ** * ** ** ** ** * * * *** * ******** is not a * *** * *** s);
* *** ** ** ** ** * * ** * ** 0;
***** ** ** **

}
answered by (-100 points)
0 like 0 dislike
Hidden content!
#include * * *** *

#include *** * ***

 

int is_palindrome(char *s) {
** ** ** i, b;
* * * *** ***** **
* ****** * ** ** ** = strlen(s);
***** ** *
**** * *** * * *** ** = 0; i < (b /2); i++) {
*** *** * *** ***** ** (s[i] != s[b-i-1])
** * ****** ****** ** * * * * **** * * 0;
* ** * ** * **
* * * **** * * (i >= b/2)
** ***** ** **** ** *** 1;
* * ** * **
** * * *** ** ****** *** ** * * 0;

}

int main()

{
* ** **** ** * s[256];
* * * * *** ** * *
* * * ** * **** ***

* **** *
* * ***** ** * * **** *** *
**** * ** ***** **
*** * *** ** ** * * * ** (is_palindrome(s))
* *** * ** ** *** * * * ** ** *** * **** is a palindrome\n", s);
* ** ** * * *** * ** ** * * *
* * **** * * *** * *** * ***** * * ** * ** is not a * ** * * * * s);
** * *** * * *** *

}
answered by (-100 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.197.95
©2016-2026

Related questions

0 like 0 dislike
7 answers
[Normal] Coding (C) - asked Jan 5, 2017 in 2016-1 程式設計(一)AC by 林佳慧 (-85 points)
ID: 20976 - Available when: Unlimited - Due to: Unlimited
| 1.7k views
0 like 0 dislike
24 answers
asked Dec 7, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points) | 4.5k views
0 like 0 dislike
3 answers
[Normal] Coding (C) - asked Jan 5, 2017 in 2016-1 程式設計(一)AC
ID: 20997 - Available when: Unlimited - Due to: Unlimited
| 1.3k views
0 like 0 dislike
3 answers
[Normal] Coding (C) - asked Jan 3, 2017 in 2016-1 程式設計(一)AC by 410425014 (-162 points)
ID: 20514 - Available when: Unlimited - Due to: Unlimited
| 1.3k views
0 like 0 dislike
5 answers
[Normal] Coding (C) - asked Dec 27, 2016 in 2016-1 程式設計(一)AC by 410342026 (-105 points)
ID: 20135 - Available when: Unlimited - Due to: Unlimited
| 2.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users