Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
For example,
“A man, a plan, a canal: Panama” is a palindrome.
“race a car” is not a palindrome.
Note:
Have you consider that the string might be empty? This is a good question to ask during an interview.
For the purpose of this problem, we define empty string as valid palindrome.
可以忽略除数字和字母以外的标点符号。
public boolean isPalindrome(String s) {
if (s.length() == 0)
return true;
int i = 0, j = s
LeetCode:检查字符串是否为字符回文

该博客探讨了如何确定一个字符串是否为回文,只考虑字母和数字,并忽略大小写和标点符号。LeetCode上的125题提供了一个例子,如'A man, a plan, a canal: Panama'被认为是回文,而'race a car'则不是。题目还指出,空字符串也被视为有效的回文。解决方案会忽略非字母和数字的字符。"
115428837,7854605,华邦25X80BIOS强刷教程与风险提示,"['BIOS', '硬件故障', 'DIY维修', 'Windows', '主板维修']
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