LeetCode:救生艇【881】】的更多相关文章

[LeetCode]881. Boats to Save People 解题报告(Python) 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/boats-to-save-people/description/ 题目描述: The i-th person has weight people[i], and each boat can carry a maximu…
The i-th person has weight people[i], and each boat can carry a maximum weight of limit. Each boat carries at most 2 people at the same time, provided the sum of the weight of those people is at most limit. Return the minimum number of boats to carry…
LeetCode:救生艇[881] 题目描述 第 i 个人的体重为 people[i],每艘船可以承载的最大重量为 limit. 每艘船最多可同时载两人,但条件是这些人的重量之和最多为 limit. 返回载到每一个人所需的最小船数.(保证每个人都能被船载). 示例 1: 输入:people = [1,2], limit = 3 输出:1 解释:1 艘船载 (1, 2) 示例 2: 输入:people = [3,2,2,1], limit = 3 输出:3 解释:3 艘船分别载 (1, 2), (…
第 i 个人的体重为 people[i],每艘船可以承载的最大重量为 limit. 每艘船最多可同时载两人,但条件是这些人的重量之和最多为 limit. 返回载到每一个人所需的最小船数.(保证每个人都能被船载). 示例 1: 输入:people = [1,2], limit = 3 输出:1 解释:1 艘船载 (1, 2) 示例 2: 输入:people = [3,2,2,1], limit = 3 输出:3 解释:3 艘船分别载 (1, 2), (2) 和 (3) 示例 3: 输入:peopl…
原题链接在这里:https://leetcode.com/problems/boats-to-save-people/ 题目: The i-th person has weight people[i], and each boat can carry a maximum weight of limit. Each boat carries at most 2 people at the same time, provided the sum of the weight of those peop…
[题目] The i-th person has weight people[i], and each boat can carry a maximum weight of limit. Each boat carries at most 2 people at the same time, provided the sum of the weight of those people is at most limit. Return the minimum number of boats to…
第 i 个人的体重为 people[i],每艘船可以承载的最大重量为 limit. 每艘船最多可同时载两人,但条件是这些人的重量之和最多为 limit. 返回载到每一个人所需的最小船数.(保证每个人都能被船载). 示例 1: 输入:people = [1,2], limit = 3 输出:1 解释:1 艘船载 (1, 2) 思路: 贪心,先将people按体重递增排序,设置左右两个指针,如果体重最轻的人加上体重最重的重量和小于limit,左指针加一,ans++,右指针减一: 如果大于了limit…
第 i 个人的体重为 people[i],每艘船可以承载的最大重量为 limit. 每艘船最多可同时载两人,但条件是这些人的重量之和最多为 limit. 返回载到每一个人所需的最小船数.(保证每个人都能被船载). 示例 1: 输入:people = [1,2], limit = 3 输出:1 解释:1 艘船载 (1, 2) 示例 2: 输入:people = [3,2,2,1], limit = 3 输出:3 解释:3 艘船分别载 (1, 2), (2) 和 (3) 示例 3: 输入:peopl…
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贪心算法篇 # 题名 刷题 通过率 难度 44 通配符匹配   17.8% 困难 45 跳跃游戏 II   25.5% 困难 55 跳跃游戏   30.6% 中等 122 买卖股票的最佳时机 II C#LeetCode刷题之#122-买卖股票的最佳时机 II(Best Time to Buy and Sell Stock II) 48.8% 简单 134 加油站   40.0% 中等 135 分发糖果   33.0% 困难 316 去除重复字母   21.6% 困难 321 拼接最大数   20…
双指针篇 # 题名 刷题 通过率 难度 3 无重复字符的最长子串   24.5% 中等 11 盛最多水的容器   43.5% 中等 15 三数之和   16.1% 中等 16 最接近的三数之和   34.6% 中等 18 四数之和   29.8% 中等 19 删除链表的倒数第N个节点   29.6% 中等 26 删除排序数组中的重复项 C#LeetCode刷题之#26-删除排序数组中的重复项(Remove Duplicates from Sorted Array) 39.8% 简单 27 移除元…
# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com'https://oj.leetcode.com/problems/largest-number/ Given a list of non negative integers, arrange them such that they form the largest number. For example, given [3, 30, 34, 5, 9], the largest…
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…
Contest 91 (2018年10月24日,周三) 链接:https://leetcode.com/contest/weekly-contest-91/ 模拟比赛情况记录:第一题柠檬摊的那题6分钟AC,然后是第二题树的距离K的结点那题比较久,大概写了30分钟,第三题翻转矩阵那题第一次提交错误了,列的优化方法思路错了,WA.后来比赛时间到了才改过来.最后一题最短子数组的和比K大的这题不会做. [860]Lemonade Change   (第一题) 一个柠檬摊,有一队人排队要买柠檬,一个5刀,…
[3]Longest Substring Without Repeating Characters [11]Container With Most Water [15]3Sum (2019年2月26日) 给了一个乱序的数组,返回一个结果数组,数组里面每个元素是一个三元组, 三元组的和加起来为0. 题解:先固定第一个数,然后后面两个数的控制用夹逼定理,2 pointers 来解. class Solution { public: vector<vector<int>> threeSu…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 把自己刷过的所有题目做一个整理,并且用简洁的语言概括了一下思路,汇总成了一个表格. 题目的排列顺序是按照先Easy再Medium再Hard排列的,暂时还没有把题目全部整理完成.后序我会把刷过的所有的题目都整理到这个文档里. 题目 难度 解法 题目地址 566. Reshape the Matrix Easy 变长数组,求余法,维护行列计算在新的数组中的位置 https://blog.c…
# 增强学习成果 有一个研究成果,在学习中传授他人知识和讨论是最高效的做法,而看书则是最低效的做法(具体研究成果没找到地址).我写LeetCode博客主要目的是增强学习成果.当然,我也想出名,然而不知道能否出名. # 给算法的新手们提供一种思考方式的参考 提前说明,本人也不是高手. 算法这个东西有点玄乎.很多新手(包括我)初期入门的时候都学的是<算法导论>,然而我并不觉得<算法导论>是一本学习算法很好的书. 我们设计算法的流程,并不是像<算法导论>那样,好像天生就知道这…
终于将LeetCode的免费题刷完了,真是漫长的第一遍啊,估计很多题都忘的差不多了,这次开个题目汇总贴,并附上每道题目的解题连接,方便之后查阅吧~ 477 Total Hamming Distance 44.10% Meidum 475 Heaters  30.20% Easy 474 Ones and Zeroes  34.90% Meidum 473 Matchsticks to Square  31.80% Medium 472 Concatenated Words 29.20% Hard…
Find the length of the longest substring T of a given string (consists of lowercase letters only) such that every character in T appears no less than k times. Example 1: Input: s = "aaabb", k = 3 Output: 3 The longest substring is "aaa"…
题目链接:Path Sum II | LeetCode OJ Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum. For example: Given the below binary tree and sum = 22, 5 / \ 4 8 / / \ 11 13 4 / \ / \ 7 2 5 1 return [ [5,4,11,2],…
题目链接:Path Sum | LeetCode OJ Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum. For example: Given the below binary tree and sum = 22, 5 / \ 4 8 / / \ 11…
题目链接:Balanced Binary Tree | LeetCode OJ Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node never differ by more tha…
题目链接:Same Tree | LeetCode OJ Given two binary trees, write a function to check if they are equal or not. Two binary trees are considered equal if they are structurally identical and the nodes have the same value. Tags: Depth-first Search 分析 很基本的一道深度优…
题目链接:Recover Binary Search Tree | LeetCode OJ Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. Note: A solution using O(n) space is pretty straight forward. Could you devise a constan…
题目链接:Validate Binary Search Tree | LeetCode OJ Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node contains only nodes with keys less than the node's key. The right…
题目链接:Symmetric Tree | LeetCode OJ Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary tree is symmetric: 1 / \ 2 2 / \ / \ 3 4 4 3 But the following is not: 1 / \ 2 2 \ \ 3 3 Note: B…
题目链接:Sudoku Solver | LeetCode OJ Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character '.'. You may assume that there will be only one unique solution. A sudoku puzzle... ...and its solution n…
题目链接:Valid Sudoku | LeetCode OJ Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules. The Sudoku board could be partially filled, where empty cells are filled with the character '.'. A partially filled sudoku which is valid. Note:…
题目链接:Populating Next Right Pointers in Each Node II | LeetCode OJ Follow up for problem "Populating Next Right Pointers in Each Node". What if the given tree could be any binary tree? Would your previous solution still work? Note: You may only u…
题目链接:Populating Next Right Pointers in Each Node | LeetCode OJ Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; } Populate each next pointer to point to its next right node. If there is no next ri…