207. Course Schedule

题目：There are a total of n courses you have to take, labeled from 0 to n - 1.Some courses may have prerequisites, for example to take course 0 you have to first take course 1, which is expr

技术开发 2016年07月09日

301. Remove Invalid Parenthesis

问题： Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may contain letters other than the parenth

技术开发 2016年07月10日

329. Longest Increasing Path in a Matri

题目：Given an integer matrix, find the length of the longest increasing path.From each cell, you can either move to four directions: left, right, up or down. You may NOT move diagonally or m

技术开发 2016年07月11日

364. Nested List Weight SumII

题目：Given a nested list of integers, return the sum of all integers in the list weighted by their depth.Each element is either an integer, or a list -- whose elements may also be integers o

技术开发 2016年07月12日

212. Word SearchII

题目：Given a 2D board and a list of words from the dictionary, find all words in the board.Each word must be constructed from letters of sequentially adjacent cell, where "adjacent" cells ar

技术开发 2016年07月28日

302. Smallest Rectangle Enclosing Black Piels

题目：An image is represented by a binary matrix with 0 as a white pixel and 1 as a black pixel. The black pixels are connected, i.e., there is only one black region. Pixels are connected hor

技术开发 2016年08月02日

[LintCode/LeetCode] Subsets & Subsets II

SubsetsProblemGiven a set of distinct integers, return all possible subsets.NoticeElements in a subset must be in non-descending order.The solution set must not contain duplicate subsets.E

技术开发 2016年08月04日

[Algorithm] DFS和Backtracking的区别

DFS BacktrackingTarget Structure Actual Tree/Graph Structure Any type of structure where portions of the domain can be eliminated (Chess Board, matrix, implicit tree) Definition A specific

业界 2016年08月06日