drowzju的专栏

You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a link

题目来自https://oj.leetcode.com/problems/longest-substring-without-repeating-characters/Given a string, find the length of the longest substring without repeating characters. For example, the longes

Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longest palindromic substring.题目来自: https://

The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility)P A H NA P L S I

题目来自leetcodehttps://oj.leetcode.com/problems/median-of-two-sorted-arrays/There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall

python的装饰器是一个非常有趣的特性。

太久没写程序，最近拿着leetcode 的题目开始练练手，免得生疏了。 leecode is here:https://oj.leetcode.com/problemsGiven an array of integers, find two numbers such that they add up to a specific target number.