10 examples of 'generate palindrome string python' in Python

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31@staticmethod
32def is_palindrome(num):
33 return str(num) == ''.join(reversed(str(num)))
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21def isPalindrome(string):
22 leftIdx = 0
23 rightIdx = len(string) - 1
24 while leftIdx < rightIdx:
25 if string[leftIdx] != string[rightIdx]:
26 return False
27 leftIdx += 1
28 rightIdx -= 1
29 return True
14def isPalindrome(self, s):
15 """
16 :type s: str
17 :rtype: bool
18 """
19 cleaned = re.sub('[^0-9a-zA-Z]', '', s)
20 if cleaned.lower() == cleaned[::-1].lower():
21 return True
22 return False
20def shortestPalindrome(self, s):
21 """
22 :type s: str
23 :rtype: str
24 """
25 rStr = s[::-1]
26 for i in range(len(s)):
27 temp = rStr[:i] + s
28 if self.isPalindrome(temp):
29 return temp
30 return ""
34def isPalindrome(self, s: 'str') -> 'bool':
35 s = ''.join(filter(str.isalnum, s)).lower()
36 return s == s[::-1]
35def isPalindrome(self, A):
36 low, high = 0, len(A) - 1
37 while low < high:
38
39 while low < high and not A[low].isalnum():
40 low += 1
41
42 while low < high and not A[high].isalnum():
43 high -= 1
44
45 if A[low].lower() != A[high].lower():
46 return 0
47
48 low, high = low + 1, high - 1
49
50 return 1
13def isPalindromeIterative(string):
14 start = 0
15 end = len(string) - 1
16 while start < end:
17 start = start + 1
18 end = end - 1
19 if string[start] != string[end]:
20 return False
21 return True
36def isPalindrome(self, x):
37 """
38 :type x: int
39 :rtype: bool
40 """
41 if x < 0:
42 return False
43 x = abs(x)
44 l = len(str(x))
45 i = 1
46 while i < l / 2 + 1:
47
48 head = (x / 10 ** (l-i)) % 10
49 tail = (x % 10 ** i) if i == 1 else (x % 10 ** i) / (10 ** (i-1))
50 if head != tail:
51 return False
52 i = i + 1
53
54 return True
18def longestPalindrome(string):
19 size = len(string)
20 dp = []
21 # 初始化一个N * N的矩阵
22 for i in range(size):
23 row = []
24 for j in range(size):
25 row.append(False)
26 dp.append(row)
27 max_seq_len = 0
28 max_seq = ""
29 for i in range(size - 1, -1, -1):
30 for j in range(i, size):
31 if j == i:
32 dp[i][j] = True
33 elif j == i + 1:
34 if string[i] == string[j]:
35 dp[i][j] = True
36 else:
37 dp[i][j] = False
38 else:
39 if string[i] == string[j] and dp[i + 1][j - 1]:
40 dp[i][j] = True
41 else:
42 dp[i][j] = False
43 if j - i + 1 >= max_seq_len and dp[i][j]:
44 max_seq_len = j - i + 1
45 max_seq = string[i:j + 1]
46 return max_seq
8def palindrome_index(s):
9 for i in range(len(s)):
10 if is_palindrome(s[i+1:len(s)-i]):
11 return i
12
13 if is_palindrome(s[i:len(s)-i-1]):
14 return len(s)-i-1

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