Longest Palindromic Substring--leetcode
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常规算法(效率较低):
public static String longestPalindrome(String s) {int num = 0;String result = ""; for(int i = 0;i < s.length();i++){ for(int j = i + 1;j <= s.length();j++){ if(isPalindrome(s.substring(i, j))){ if(j-i > num){ num = j-i; result = s.substring(i, j); } } } } return result; }public static Boolean isPalindrome(String s){StringBuilder strB = new StringBuilder(s); strB.reverse(); String str = new String(strB); if(str.equals(s)){ return true; }else{ return false; }}
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