LeetCode: 63. Unique Paths II（Medium）

阿新 • • 發佈：2018-02-10

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1. 原題鏈接

https://leetcode.com/problems/unique-paths-ii/description/

uniq code pat script href tar ems leet esc 1. 原題鏈接 https://leetcode.com/problems/unique-paths-ii/description/LeetCode: 63. Unique Paths I

地址：https://leetcode.com/problems/unique-paths-ii/ 題目： A robot is located at the top-left corner of a m

con etc 關鍵點 lan 題目 lis total middle blog Follow up for "Unique Paths": Now consider if some obstacles are added to the grids. How many un

這題跟“唯一路徑”有點類似，只是多了一些障礙導致通路無法連通而已，只需要判斷一下在進行向下/向右走時是否存在障礙，分情況討論即可，而且分類討論的難度不大，也時很快就AC了。 class Solution { public: int uniquePathsWithOb

63. Unique Paths II 題目描述 Discuss Pick One Follow up for “Unique Paths”: Now consider if some obstacles are added to the gr

false mos tac empty uniq pub ons str ide 題目： Follow up for "Unique Paths": Now consider if some obstacles are added to the grids. How

https://leetcode.com/problems/unique-paths-ii/ A robot is located at the top-left corner of a m x n grid (marked 'Start' in th

A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either

class Solution { public int uniquePathsWithObstacles(int[][] obstacleGrid) { int m=obstacleGrid.length; int n=obstacleGrid[0].

　前面做過一道Unique Paths的題，那就順便把Unique Paths II做了吧。這道題的要求基本和前面相同，從左上角出發，只能向左或者向右，求最終到達右下角有多少條路徑，區別是這題多了障礙點，就是矩陣上數值為1的地方，有障礙的地方無法通行。

public mov code font ner there tac trying not A robot is located at the top-left corner of a m x n grid (marked ‘Start‘ in the diagram be

給定一個二維陣列，每格為0/1值，1代表無法通過。求從左上到右下的不同路徑數。只能往右/下走。 Input: [ [0,0,0], [0,1,0], [0,0,0] ] Output: 2 Explanation: There is one obstacl

題目描述：一個機器人位於一個 m x n 網格的左上角（起始點在下圖中標記為“Start” ）。機器人每次只能向下或者向右移動一步。機器人試圖達到網格的右下角（在下圖中標記為“Finish”）。現在考慮網格中有障礙物。那麼從左上角到右下角將會有多少條不同的路徑？網格中的障

hide .text fun views [] pre ota function esp 【063-Unique Paths II（唯一路徑問題II）】【LeetCode-面試算法經典-Java實現】【全部題目文件夾索引】原題　　Fo

這三個問題及其類似，背景都是和路徑相關，方法都是動態優化目錄 62題：題目描述：演算法實現： 63題題目描述：演算法實現： 64題題目描述演算法實現 62題：題目描述： A robot is located at the top-le

題目描述：一個機器人位於一個 m x n 網格的左上角（起始點在下圖中標記為“Start” ）。機器人每次只能向下或者向右移動一步。機器人試圖達到網格的右下角（在下圖中標記為“Finish”）。現在考慮網格中有障礙物。那麼從左上角到右下角將會有多少條不同的路

63. Unique Paths II Description： A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagra

ems popu 這一 amp () path bin art 不能【聲明：版權全部，轉載請標明出處，請勿用於商業用途。聯系信箱：[email protected]/* */ 題目鏈接：https://leetcode.com/problem

esp TE obs pla IV bst i++ col pub 問題描述： A robot is located at the top-left corner of a m x n grid (marked ‘Start‘ in the diagram below).

題目： Given an array of integers that is already sorted in ascending order, find two numbers such that they add up