0 like 0 dislike
5.6k 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 | 5.6k 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:104.23.197.94
©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) | 4.3k 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
| 1.2k 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
| 1.2k 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
| 2.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users