Given a sorted array nums, remove the duplicates in-place such that each element appear …

  Given a singly linked list, determine if it is a palindrome. Follow up: Could you do it in O(n) time an…

  Given an integer array sorted in ascending order, write a function to search target in&n…

题目： Validate if a given string is numeric. Some examples:"0" => true" 0.1 " => true"…

  Given an integer array of size n, find all elements that appear more than ⌊ n/3 ⌋ times. The algorithm …

  We are to write the letters of a given string S, from left to right into lines. Each line has maxi…

题目地址：https://leetcode-cn.com/probl…题目描述：给定一个非负整数 n，计算各位数字都不同的数字 x 的个数，其中 0 ≤ x < 10的n次方 。 示例: 输入: 2输出…

  Given a linked list, remove the nth node from the end of list and return its head. For example, Given l…

  Given a binary tree where all the right nodes are either leaf nodes with a sibling (a left node that sh…

  Given a nested list of integers represented as a string, implement a parser to deserialize it. Each ele…

Given a 2d grid map of ‘1’s (land) and ‘0’s (water), count the number of islands. An i…

  Given a string s, partition s such that every substring of the partition is a palindrome. Return the mi…