public class Solution { public boolean isPalindrome(int x) { int palindrome=0; int revers=x; if(revers<0) return false; else{ while(revers>0){ int m=revers%10; palindrome=m+palindrome*10; revers=revers/10; } if(palindrome==x) return true; else return false; } } }...
336. Palindrome Pairs Given a list of unique words, find all pairs of distinct indices (i, j) in the given list, so that the concatenation of the two words, i.e. words[i] + words[j] is a palindrome. Given words = ["abcd", "dcba", "lls", "s", "sssll"] Return [[0, 1]...
Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward. 确定整数是不是回文数,当整数向前和向后读相同的时候,就是回文数 Example 1: Input: 121 Output: true Example 2: Input: -121 Output: false Explanation: From left to right, it...
"race a car"isnota 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. 题解: 这道题的几个点, 一就是alphanumeric characters and ignoring case...
In the code snippet, we invoke thereverse()method from theStringBuilderandStringBufferAPI to reverse the givenStringand test for equality. 2.3. UsingStreamAPI We can also use anIntStreamto provide a solution: publicbooleanisPalindromeUsingIntStream(String text){Stringtemp=text.replaceAll("\\s+",...
// Java code for checking string palindrome public class Main { //function to check whether string is Palindrome or not public static boolean isPalindrome(String str) { // Checking for null if (str == null) { throw new IllegalArgumentException("String is null."); } // length of the ...
LeetCode Top Interview Questions 38. Count and Say (Java版; Easy) welcome to my blog LeetCode Top Interview Questions 38. Count and Say (Java版; Easy) 题目描述 第一次做; 使用cur翻译pre; 自底向上, 也就是从1到n; 双层循环+双变量pre,cur; 循环条件的优化将for(int j=1; j<pre.length...
LeetCode 125. Valid Palindrome验证回文串(Java) 技术标签: LeetCode题目: Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. Note: For the purpose of this problem, we define empty string as valid palindrome. Example 1: Input: “A man,...
[Leetcode] Shortest Palindrome 最短回文拼接法 Shortest Palindrome Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest palindrome you can find by performing this transformation....
import java.util.*; import java.lang.*; class Seventeen { public static void main(String args[]) { Scanner sc=new Scanner(System.in); String str=sc.next(); String reverse = new StringBuffer(str).reverse().toString(); if(str.equals(reverse)) ...