摘要：
原题链接在这里：https://leetcode.com/problems/fibonacci-number/ 题目： The Fibonacci numbers, commonly denoted F(n) form a sequence, called the Fibonacci sequenc
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posted @ 2019-12-30 08:41
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/ 题目： You have k lists of sorted integers in ascending order. Find
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posted @ 2019-12-29 12:43
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/minimum-area-rectangle-ii/ 题目： Given a set of points in the xy-plane, determine the minimum area of any rectangl
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posted @ 2019-12-29 05:23
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/minimum-area-rectangle/ 题目： Given a set of points in the xy-plane, determine the minimum area of a rectangle for
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posted @ 2019-12-29 05:19
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/minimum-window-subsequence/ 题目： Given strings s1 and s2, return the minimum contiguous substring part of s1, so
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posted @ 2019-12-28 13:54
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/backspace-string-compare/ 题目： Given two strings S and T, return if they are equal when both are typed into empty
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posted @ 2019-12-28 06:08
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/valid-tic-tac-toe-state/ 题目： A Tic-Tac-Toe board is given as a string array board. Return True if and only if it
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posted @ 2019-12-27 09:25
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/design-search-autocomplete-system/ 题目： Design a search autocomplete system for a search engine. Users may input
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posted @ 2019-12-27 07:59
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/longest-absolute-file-path/ 题目： Suppose we abstract our file system by a string in the following manner: The str
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posted @ 2019-12-27 06:29
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/rotated-digits/ 题目： X is a good number if after rotating each digit individually by 180 degrees, we get a valid
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posted @ 2019-12-27 05:25
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/design-circular-deque/ 题目： Design your implementation of the circular double-ended queue (deque). Your implement
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posted @ 2019-12-22 12:12
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/design-circular-queue/ 题目： Design your implementation of the circular queue. The circular queue is a linear data
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posted @ 2019-12-22 11:51
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/remove-outermost-parentheses/ 题目： A valid parentheses string is either empty (""), "(" + A + ")", or A + B, wher
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posted @ 2019-12-22 08:20
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/defanging-an-ip-address/ 题目： Given a valid (IPv4) IP address, return a defanged version of that IP address. A de
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posted @ 2019-12-22 07:30
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/find-pivot-index/ 题目： Given an array of integers nums, write a method that returns the "pivot" index of this arr
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posted @ 2019-12-22 04:08
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/check-if-a-number-is-majority-element-in-a-sorted-array/ 题目： Given an array nums sorted in non-decreasing order,
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posted @ 2019-12-21 10:48
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/peak-index-in-a-mountain-array/ 题目： Let's call an array A a mountain if the following properties hold: A.length
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posted @ 2019-12-21 09:43
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/smallest-common-region/ 题目： You are given some lists of regions where the first region of each list includes all
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posted @ 2019-12-21 09:25
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/coloring-a-border/ 题目： Given a 2-dimensional grid of integers, each value in the grid represents the color of th
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posted @ 2019-12-19 13:12
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/design-tic-tac-toe/ 题目： Design a Tic-tac-toe game that is played between two players on a n x n grid. You may as
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posted @ 2019-12-19 12:41
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/ 题目： There are a number of spherical balloons spread in two-dimension
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posted @ 2019-12-19 11:56
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/flood-fill/ 题目： An image is represented by a 2-D array of integers, each integer representing the pixel value of
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posted @ 2019-12-18 10:59
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/squares-of-a-sorted-array/ 题目： Given an array of integers A sorted in non-decreasing order, return an array of t
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posted @ 2019-12-18 10:09
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/contiguous-array/ 题目： Given a binary array, find the maximum length of a contiguous subarray with equal number o
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posted @ 2019-12-17 13:09
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/spiral-matrix-iii/ 题目： On a 2 dimensional grid with R rows and C columns, we start at (r0, c0) facing east. Here
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posted @ 2019-12-17 12:29
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/stickers-to-spell-word/ 题目： We are given N different types of stickers. Each sticker has a lowercase English wor
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posted @ 2019-12-17 11:38
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/single-element-in-a-sorted-array/ 题目： You are given a sorted array consisting of only integers where every eleme
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posted @ 2019-12-16 10:40
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/toeplitz-matrix/ 题目： A matrix is Toeplitz if every diagonal from top-left to bottom-right has the same element.
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posted @ 2019-12-16 10:08
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/valid-square/ 题目： Given the coordinates of four points in 2D space, return whether the four points could constru
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posted @ 2019-12-16 10:01
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/intersection-of-three-sorted-arrays/ 题目： Given three integer arrays arr1, arr2 and arr3 sorted in strictly incre
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posted @ 2019-12-16 09:09
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/unique-paths-iii/ 题目： On a 2-dimensional grid, there are 4 types of squares: 1 represents the starting square. T
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posted @ 2019-12-16 08:59
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/find-the-town-judge/ 题目： In a town, there are N people labelled from 1 to N. There is a rumor that one of these
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posted @ 2019-12-16 06:54
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/pancake-sorting/ 题目： Given an array A, we can perform a pancake flip: We choose some positive integer k <= A.len
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posted @ 2019-12-16 06:11
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/ 题目： Given a rooted binary tree, return the lowest common ancestor of i
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posted @ 2019-12-15 10:58
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/maximum-vacation-days/ 题目： LeetCode wants to give one of its best employees the option to travel among N cities
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posted @ 2019-12-15 10:40
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/snapshot-array/ 题目： Implement a SnapshotArray that supports the following interface: SnapshotArray(int length) i
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posted @ 2019-12-15 07:42
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/robot-room-cleaner/ 题目： Given a robot cleaner in a room modeled as a grid. Each cell in the grid can be empty or
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posted @ 2019-12-12 13:11
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/valid-palindrome-iii/ 题目： Given a string s and an integer k, find out if the given string is a K-Palindrome or n
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posted @ 2019-12-12 11:38
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/ 题目： Given a string S of '(' and ')' parentheses, we add the minimum numbe
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posted @ 2019-12-12 08:24
Dylan_Java_NYC
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原题链接在这里：https://leetcode.com/problems/range-sum-of-bst/ 题目： Given the root node of a binary search tree, return the sum of values of all nodes with va
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posted @ 2019-12-12 08:00
Dylan_Java_NYC
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