0 like 0 dislike
5.8k 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 | 5.8k 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:104.23.197.65
©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) | 4.4k 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