Grandyang

2021年2月7日

[LeetCode] 1020. Number of Enclaves 飞地的数量

摘要： Given a 2D array , each cell is 0 (representing sea) or 1 (representing land) A move consists of walking from one land square 4 directionally to anoth 阅读全文

posted @ 2021-02-07 15:19 Grandyang 阅读(641) 评论(0) 推荐(0) 编辑

[LeetCode] 1019. Next Greater Node In Linked List 链表中的下一个较大的结点

摘要： We are given a linked list with as the first node. Let's number the nodes in the list: etc. Each node may have a next larger value: for , is the such 阅读全文

posted @ 2021-02-07 03:53 Grandyang 阅读(642) 评论(0) 推荐(0) 编辑

2021年2月6日

[LeetCode] 1018. Binary Prefix Divisible By 5 可被5整除的二进制前缀

摘要： Given an array of s and s, consider : the i th subarray from to interpreted as a binary number (from most significant bit to least significant bit.) R 阅读全文

posted @ 2021-02-06 12:59 Grandyang 阅读(385) 评论(0) 推荐(0) 编辑

2021年2月5日

[LeetCode] 1017. Convert to Base -2 负二进制转换

摘要： Given a number , return a string consisting of s and s that represents its value in base (negative two). The returned string must have no leading zero 阅读全文

posted @ 2021-02-05 14:25 Grandyang 阅读(622) 评论(1) 推荐(0) 编辑

2021年2月4日

[LeetCode] 1016. Binary String With Substrings Representing 1 To N 子串能a56爆大奖在线娱乐从1到N数字的二进制串

摘要： Given a binary string (a string consisting only of '0' and '1's) and a positive integer , return true if and only if for every integer X from 1 to N, 阅读全文

posted @ 2021-02-04 14:08 Grandyang 阅读(406) 评论(1) 推荐(0) 编辑

2021年2月3日

[LeetCode] 1015. Smallest Integer Divisible by K 可以整除K的最小整数

摘要： Given a positive integer , you need to find the length of the smallest positive integer such that is divisible by , and only contains the digit . Retu 阅读全文

posted @ 2021-02-03 16:48 Grandyang 阅读(596) 评论(3) 推荐(0) 编辑

2021年2月2日

[LeetCode] 1014. Best Sightseeing Pair 最佳观光组合

摘要： Given an array of positive integers, represents the value of the th sightseeing spot, and two sightseeing spots and have distance between them. The sc 阅读全文

posted @ 2021-02-02 13:32 Grandyang 阅读(780) 评论(0) 推荐(0) 编辑

2021年2月1日

[LeetCode] 1013. Partition Array Into Three Parts With Equal Sum 将数组分成和相等的三个部分

摘要： Given an array of integers , return if we can partition the array into three non empty parts with equal sums. Formally, we can partition the array if 阅读全文

posted @ 2021-02-01 15:37 Grandyang 阅读(522) 评论(0) 推荐(0) 编辑

2021年1月31日

[LeetCode] 1012. Numbers With Repeated Digits 至少有1位重复的数字

摘要： Given a positive integer , return the number of positive integers less than or equal to that have at least 1 repeated digit. Example 1: Input: 20 Outp 阅读全文

posted @ 2021-01-31 16:48 Grandyang 阅读(577) 评论(0) 推荐(0) 编辑

2021年1月30日

[LeetCode] 1011. Capacity To Ship Packages Within D Days 在D天内送达包裹的能力

摘要： A conveyor belt has packages that must be shipped from one port to another within D days. The ith package on the conveyor belt has a weight of weights 阅读全文

posted @ 2021-01-30 10:18 Grandyang 阅读(1432) 评论(0) 推荐(0) 编辑

2021年1月29日

[LeetCode] 1010. Pairs of Songs With Total Durations Divisible by 60 总持续时间可被60整除的歌曲

摘要： You are given a list of songs where the ith song has a duration of seconds. Return the number of pairs of songs for which their total duration in seco 阅读全文

posted @ 2021-01-29 12:55 Grandyang 阅读(938) 评论(0) 推荐(0) 编辑

2021年1月25日

[LeetCode] 1009. Complement of Base 10 Integer 十进制整数的补码

摘要： Every non negative integer has a binary representation. For example, can be represented as in binary, as in binary, and so on. Note that except for , 阅读全文

posted @ 2021-01-25 06:24 Grandyang 阅读(510) 评论(0) 推荐(0) 编辑

2021年1月24日

[LeetCode] 1008. Construct Binary Search Tree from Preorder Traversal 从先序遍历重建二叉搜索树

摘要： Return the root node of a binary search tree that matches the given traversal. (Recall that a binary search tree is a binary tree where for every node 阅读全文

posted @ 2021-01-24 04:25 Grandyang 阅读(907) 评论(0) 推荐(0) 编辑

2021年1月20日

[LeetCode] 1007. Minimum Domino Rotations For Equal Row 行相等的最少多米诺旋转

摘要： In a row of dominoes, and represent the top and bottom halves of the domino. (A domino is a tile with two numbers from 1 to 6 one on each half of the 阅读全文

posted @ 2021-01-20 15:20 Grandyang 阅读(633) 评论(0) 推荐(0) 编辑

2021年1月19日

[LeetCode] 1006. Clumsy Factorial 笨拙的阶乘

摘要： Normally, the factorial of a positive integer is the product of all positive integers less than or equal to . For example, . We instead make a clumsy 阅读全文

posted @ 2021-01-19 10:08 Grandyang 阅读(436) 评论(0) 推荐(0) 编辑

2021年1月18日

[LeetCode] 1005. Maximize Sum Of Array After K Negations K次取反后最大化的数组和

摘要： Given an array of integers, we must modify the array in the following way: we choose an and replace with , and we repeat this process times in total. 阅读全文

posted @ 2021-01-18 08:31 Grandyang 阅读(979) 评论(0) 推荐(0) 编辑

[LeetCode] 1004. Max Consecutive Ones III 最大连续1的个数之三

摘要： Given an array of 0s and 1s, we may change up to values from 0 to 1. Return the length of the longest (contiguous) subarray that contains only 1s. Exa 阅读全文

posted @ 2021-01-18 06:08 Grandyang 阅读(2071) 评论(0) 推荐(1) 编辑

2021年1月17日

[LeetCode] 1003. Check If Word Is Valid After Substitutions 检查替换后的词是否有效

摘要： Given a string , determine if it is valid. A string is valid if, starting with an empty string , you can transform into after performing the following 阅读全文

posted @ 2021-01-17 07:30 Grandyang 阅读(383) 评论(0) 推荐(0) 编辑

2021年1月16日

[LeetCode] 1002. Find Common Characters 寻找相同字符

摘要： Given an array of strings made only from lowercase letters, return a list of all characters that show up in all strings within the list (including dup 阅读全文

posted @ 2021-01-16 13:47 Grandyang 阅读(1270) 评论(0) 推荐(0) 编辑

2021年1月15日

[LeetCode] 1001. Grid Illumination 网格照明

摘要： You are given a grid of size N x N, and each cell of this grid has a lamp that is initially turned off. You are also given an array of lamp positions 阅读全文

posted @ 2021-01-15 15:39 Grandyang 阅读(570) 评论(2) 推荐(0) 编辑

2021年1月14日

[LeetCode] 999. Available Captures for Rook 国际象棋中车的可捕获量

摘要： On an 8 x 8 chessboard, there is one white rook. There also may be empty squares, white bishops, and black pawns. These are given as characters 'R', ' 阅读全文

posted @ 2021-01-14 14:54 Grandyang 阅读(616) 评论(0) 推荐(0) 编辑

2021年1月13日

[LeetCode] 998. Maximum Binary Tree II 最大二叉树之二

摘要： We are given the node of a maximum tree: a tree where every node has a value greater than any other value in its subtree. Just as in the "previous pro 阅读全文

posted @ 2021-01-13 13:32 Grandyang 阅读(603) 评论(0) 推荐(0) 编辑

2021年1月12日

[LeetCode] 997. Find the Town Judge 找出小镇法官

摘要： In a town, there are people labelled from to . There is a rumor that one of these people is secretly the town judge. If the town judge exists, then: 1 阅读全文

posted @ 2021-01-12 12:47 Grandyang 阅读(1245) 评论(0) 推荐(0) 编辑

2021年1月11日

[LeetCode] 996. Number of Squareful Arrays 平方数组的个数

摘要： Given an array of non negative integers, the array is squareful if for every pair of adjacent elements, their sum is a perfect square. Return the numb 阅读全文

posted @ 2021-01-11 11:16 Grandyang 阅读(747) 评论(0) 推荐(0) 编辑

2021年1月10日

[LeetCode] 994. Rotting Oranges 腐烂的橘子

摘要： You are given an `grid` where each cell can have one of three values: representing an empty cell, representing a fresh orange, or representing a rotte 阅读全文

posted @ 2021-01-10 04:07 Grandyang 阅读(1988) 评论(0) 推荐(1) 编辑

2021年1月9日

[LeetCode] 993. Cousins in Binary Tree 二叉树的表兄弟节点

摘要： In a binary tree, the root node is at depth , and children of each depth node are at depth . Two nodes of a binary tree are cousins if they have the s 阅读全文

posted @ 2021-01-09 15:46 Grandyang 阅读(1159) 评论(0) 推荐(0) 编辑

2021年1月8日

[LeetCode] 992. Subarrays with K Different Integers 有K个不同整数的子数组

摘要： Given an array of positive integers, call a (contiguous, not necessarily distinct) subarray of good if the number of different integers in that subarr 阅读全文

posted @ 2021-01-08 16:00 Grandyang 阅读(2281) 评论(1) 推荐(0) 编辑

2021年1月5日

[LeetCode] 991. Broken Calculator 损坏的计算器

摘要： On a broken calculator that has a number showing on its display, we can perform two operations: Double: Multiply the number on the display by 2, or; D 阅读全文

posted @ 2021-01-05 14:17 Grandyang 阅读(951) 评论(0) 推荐(0) 编辑

2021年1月4日

[LeetCode] 1143. Longest Common Subsequence 最长公共子序列

摘要： Given two strings and , return the length of their longest common subsequence. A subsequence of a string is a new string generated from the original s 阅读全文

posted @ 2021-01-04 16:36 Grandyang 阅读(3791) 评论(2) 推荐(0) 编辑

2021年1月3日

[LeetCode] 990. Satisfiability of Equality Equations 等式方程的可满足性

摘要： Given an array equations of strings that represent relationships between variables, each string has length and takes one of two different forms: or . 阅读全文

posted @ 2021-01-03 13:51 Grandyang 阅读(968) 评论(0) 推荐(0) 编辑

2021年1月2日

[LeetCode] 989. Add to Array-Form of Integer 数组形式的整数加法

摘要： For a non negative integer , the array form of is an array of its digits in left to right order. For example, if , then the array form is . Given the 阅读全文

posted @ 2021-01-02 05:46 Grandyang 阅读(978) 评论(0) 推荐(0) 编辑

2021年1月1日

[LeetCode] 988. Smallest String Starting From Leaf 从叶结点开始的最小字符串

摘要： Given the of a binary tree, each node has a value from to representing the letters to : a value of represents , a value of represents , and so on. Fin 阅读全文

posted @ 2021-01-01 14:31 Grandyang 阅读(689) 评论(0) 推荐(0) 编辑

[LeetCode] 986. Interval List Intersections 区间列表的交集

摘要： Given two lists of closed intervals, each list of intervals is pairwise disjoint and in sorted order. Return the intersection of these two interval li 阅读全文

posted @ 2021-01-01 13:36 Grandyang 阅读(1542) 评论(0) 推荐(0) 编辑

2020年12月31日

[LeetCode] 985. Sum of Even Numbers After Queries 查询后的偶数和

摘要： We have an array of integers, and an array of queries. For the th query , we add val to . Then, the answer to the th query is the sum of the even valu 阅读全文

posted @ 2020-12-31 14:23 Grandyang 阅读(516) 评论(0) 推荐(0) 编辑

2020年12月30日

[LeetCode] 984. String Without AAA or BBB 不含AAA或BBB的字符串

摘要： Given two integers and , return any string such that: has length and contains exactly `'a' b` letters, The substring does not occur in , and The subst 阅读全文

posted @ 2020-12-30 13:15 Grandyang 阅读(602) 评论(0) 推荐(0) 编辑

2020年12月29日

[LeetCode] 983. Minimum Cost For Tickets 最低票价

摘要： In a country popular for train travel, you have planned some train travelling one year in advance. The days of the year that you will travel is given 阅读全文

posted @ 2020-12-29 12:21 Grandyang 阅读(1761) 评论(0) 推荐(0) 编辑

2020年12月28日

[LeetCode] 982. Triples with Bitwise AND Equal To Zero 按位与为零的三元组

摘要： Given an array of integers , find the number of triples of indices (i, j, k) such that: `0 这道题给了一个数组，定义了a56爆大奖在线娱乐三元组，使得这三个数字相‘与’得到为0，问有多少种不同的组合。根据题目中的例子可以发现，阅读全文

posted @ 2020-12-28 11:07 Grandyang 阅读(482) 评论(0) 推荐(0) 编辑

2020年12月27日

[LeetCode] 981. Time Based Key-Value Store 基于时间的键值存储

摘要： Create a timebased key value store class , that supports two operations. 1\. Stores the and , along with the given . 2\. Returns a value such that was 阅读全文

posted @ 2020-12-27 04:01 Grandyang 阅读(2096) 评论(0) 推荐(0) 编辑

2020年12月26日

[LeetCode] 980. Unique Paths III 不同的路径之三

摘要： On a 2 dimensional , there are 4 types of squares: represents the starting square. There is exactly one starting square. represents the ending square. 阅读全文

posted @ 2020-12-26 09:42 Grandyang 阅读(1679) 评论(2) 推荐(0) 编辑

2020年12月25日

[LeetCode] 979. Distribute Coins in Binary Tree 在二叉树中分配硬币

摘要： You are given the root of a binary tree with n nodes where each node in the tree has node.val coins and there are n coins total. In one move, we may c 阅读全文

posted @ 2020-12-25 13:09 Grandyang 阅读(1791) 评论(3) 推荐(0) 编辑

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