LeetCode 489. Robot Room Cleaner】的更多相关文章

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 blocked. The robot cleaner with 4 given APIs can move forward, turn left or turn right. Each turn i…
Given a robot cleaner in a room modeled as a grid. Each cell in the grid can be empty or blocked. The robot cleaner with 4 given APIs can move forward, turn left or turn right. Each turn it made is 90 degrees. When it tries to move into a blocked cel…
[抄题]: Given a robot cleaner in a room modeled as a grid. Each cell in the grid can be empty or blocked. The robot cleaner with 4 given APIs can move forward, turn left or turn right. Each turn it made is 90 degrees. When it tries to move into a block…
D. Robot Vacuum Cleaner time limit per test 1 second memory limit per test 256 megabytes Problem Description Pushok the dog has been chasing Imp for a few hours already. Fortunately, Imp knows that Pushok is afraid of a robot vacuum cleaner. While mo…
Pushok the dog has been chasing Imp for a few hours already. Fortunately, Imp knows that Pushok is afraid of a robot vacuum cleaner. While moving, the robot generates a string t consisting of letters 's' and 'h', that produces a lot of noise. We defi…
题目链接:点击打开链接 Pushok the dog has been chasing Imp for a few hours already. Fortunately, Imp knows that Pushok is afraid of a robot vacuum cleaner. While moving, the robot generates a string t consisting of letters 's' and 'h', that produces a lot of no…
Given a robot cleaner in a room modeled as a grid. Each cell in the grid can be empty or blocked. The robot cleaner with 4 given APIs can move forward, turn left or turn right. Each turn it made is 90 degrees. When it tries to move into a blocked cel…
Given a robot cleaner in a room modeled as a grid. Each cell in the grid can be empty or blocked. The robot cleaner with 4 given APIs can move forward, turn left or turn right. Each turn it made is 90 degrees. When it tries to move into a blocked cel…
题目标签:Math 题目让我们判断机器人是否是一直在走一个圈. 当我们把 instructions 走完一遍时候: 1. 如果机器人回到了原点,那么它是在走一个圈. 2. 如果机器人的方向没有改变,那么它一直在朝一个方向走,就算重复instructions也不可能会走一个圈. 所以当机器人的方向改变的话,在重复instructions,它一定会走回原点,完成一个圈. 具体看code. Java Solution: Runtime:  0 ms, faster than 100 % Memory…
There is a robot starting at position (0, 0), the origin, on a 2D plane. Given a sequence of its moves, judge if this robot ends up at (0, 0) after it completes its moves. The move sequence is represented by a string, and the character moves[i] repre…
题目要求 There is a robot starting at position (0, 0), the origin, on a 2D plane. Given a sequence of its moves, judge if this robot ends up at (0, 0) after it completes its moves. The move sequence is represented by a string, and the character moves[i]…
题目: There is a robot starting at position (0, 0), the origin, on a 2D plane. Given a sequence of its moves, judge if this robot ends up at (0, 0) after it completes its moves. The move sequence is represented by a string, and the character moves[i] r…
[链接] 我是链接,点我呀:) [题意] 让你把n个字符串重新排序,然后按顺序连接在一起 使得这个组成的字符串的"sh"子序列最多 [题解] /* * 假设A的情况好于B * 也就对应了A排在B的前面 * 那么 * As*Bh>Ah*Bs ① * 现在假设B又比C来得好 * 那么有 * Bs*Ch>Bh*Cs ② * 由①可得 * As/Ah>Bs/Bh * 由②可得 * Bs/Bh>Cs/Ch * 那么有 * As/Ah>As/Ch * 即As*Ch&g…
正确的贪心方法:按照比例排序. code: #include <bits/stdc++.h> #define N 200000 #define ll long long #define setIO(s) freopen(s".in","r",stdin) using namespace std; int n; char str[N],S[N]; struct Node { int l,r; double perc; }t[N]; bool cmp(Nod…
https://leetcode-cn.com/problems/robot-return-to-origin/ 设置 flagUD 记录机器人相对于原点在纵向上的最终位置 flagRL 记录机器人相对于原点在横向上的最终位置 如果最终 flagUD==0 && flagRL==0 ,说明机器人的最终位置与原点相同 class Solution { public boolean judgeCircle(String moves) { int flagRL = 0; int flagUD =…
All LeetCode Questions List(Part of Answers, still updating) 题目汇总及部分答案(持续更新中) Leetcode problems classified by company 题目按公司分类(Last updated: October 2, 2017) .   Top Interview Questions # Title Difficulty Acceptance 1 Two Sum Medium 17.70% 2 Add Two N…
# Title Solution Acceptance Difficulty Frequency     4 Median of Two Sorted Arrays       27.2% Hard     10 Regular Expression Matching       25.6% Hard     23 Merge k Sorted Lists       35.8% Hard     25 Reverse Nodes in k-Group       37.7% Hard    …
DFS基础 深度优先搜索(Depth First Search)是一种搜索思路,相比广度优先搜索(BFS),DFS对每一个分枝路径深入到不能再深入为止,其应用于树/图的遍历.嵌套关系处理.回溯等,可以用递归.堆栈(stack)实现DFS过程. 关于广度优先搜索(BFS)详见:算法与数据结构基础 - 广度优先搜索(BFS) 关于递归(Recursion)详见:算法与数据结构基础 - 递归(Recursion) 树的遍历 DFS常用于二叉树的遍历,关于二叉树详见: 算法与数据结构基础 - 二叉查找树…
A robot on an infinite grid starts at point (0, 0) and faces north.  The robot can receive one of three possible types of commands: -2: turn left 90 degrees -1: turn right 90 degrees 1 <= x <= 9: move forward x units Some of the grid squares are obs…
You are given a m x n 2D grid initialized with these three possible values. -1 - A wall or an obstacle. 0 - A gate. INF - Infinity means an empty room. We use the value 231 - 1 = 2147483647 to represent INF as you may assume that the distance to a ga…
原题链接在这里:https://leetcode.com/problems/walls-and-gates/ 题目: You are given a m x n 2D grid initialized with these three possible values. -1 - A wall or an obstacle. 0 - A gate. INF - Infinity means an empty room. We use the value 231 - 1 = 2147483647 t…
You are given a m x n 2D grid initialized with these three possible values. -1 - A wall or an obstacle. 0 - A gate. INF - Infinity means an empty room. We use the value 231 - 1 = 2147483647 to represent INF as you may assume that the distance to a ga…
原题链接在这里:https://leetcode.com/problems/walls-and-gates/ 题目: You are given a m x n 2D grid initialized with these three possible values. -1 - A wall or an obstacle. 0 - A gate. INF - Infinity means an empty room. We use the value 231 - 1 = 2147483647 t…
[98]Validate Binary Search Tree [99]Recover Binary Search Tree [100]Same Tree [101]Symmetric Tree [104]Maximum Depth of Binary Tree [105]Construct Binary Tree from Preorder and Inorder Traversal [106]Construct Binary Tree from Inorder and Postorder T…
A Cloning Toys standard input/output 1 s, 256 MB     B Magic Forest standard input/output 1 s, 256 MB     C Cave Painting standard input/output 1 s, 256 MB     D Robot Vacuum Cleaner standard input/output 1 s, 256 MB     E Birds standard input/output…
A - Cloning Toys /* 题目大意:给出两种机器,一种能将一种原件copy出额外一种原件和一个附件, 另一种可以把一种附件copy出额外两种附件,给你一个原件, 问能否恰好变出题目要求数量的原件和附件 题解:注意当附件需求不为0的时候,原件需求必须大于1 */ #include <cstdio> #include <algorithm> int main(){ int a,b; scanf("%d%d",&a,&b); if((a-…
题目链接:http://codeforces.com/contest/922 B. Magic Forest time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Imp is in a magic forest, where xorangles grow (wut?) A xorangle of order n is such a…
[比赛链接] http://codeforces.com/contest/922 [题解] Problem A. Cloning Toys          [算法] 当y = 0 ,   不可以 当y = 1 , x不为0时 , 不可以 当 y - 1 <= x , (x - y + 1)为偶数时 , 可以 时间复杂度 : O(1) [代码] #include<bits/stdc++.h> using namespace std; template <typename T>…
Cleaner RobotCrawling in process... Crawling failed Time Limit:2000MS     Memory Limit:524288KB     64bit IO Format:%I64d & %I64u Submit Status Description   Input   Output   Sample Input   Sample Output   Hint   Description Masha has recently bought…
Algorithm [leetcode]657. Robot Return to Origin https://leetcode.com/problems/robot-return-to-origin/ 1)problem There is a robot starting at position (0, 0), the origin, on a 2D plane. Given a sequence of its moves, judge if this robot ends up at (0,…