Leetcode学习笔记:#83. Remove Duplicates from Sorted List Given a sorted linked list, delete all duplicates such that each element appear only once. 实现: public ListNode deleteDuplicates(ListNode ...
Leetcode学习笔记:#83. Remove Duplicates from Sorted List Given a sorted linked list, delete all duplicates such that each element appear only once. 实现: public ListNode deleteDuplicates(ListNode ...
好好学习,天天向上~ LeetCode 题解 C# 版本~ 推荐书籍 《图解算法》 推荐文章 知识点 排序 选择排序(Selection Sort) —— 简单直观的排序算法,O(n^2) 快速排序(Quick Sort) —— 分而治之 递归 如何将问题分成 ...
Leetcode学习笔记:#16. 3Sum Closest Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. A mapping of digit to letters (just ...
Leetcode学习笔记:#693. Binary Number with Alternating Bits Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits will always have different values. 实现: ...
leetcode下载 LearningNotes ##第一部分: Activity启动流程以及界面展示过程 设计一套图片异步加载缓存方案 Android UI适配 ======= 工厂方法模式 抽象工厂模式 状态模式 解释器模式 命令模式 备忘录模式 迭代器...
Leetcode学习笔记:#637. Average of Levels in Binary Tree Given a non-empty binary tree, return the average value of the nodes on each level in the form of an array.、 实现: public List<Double> ...
Leetcode学习笔记:#701. Insert into a Binary Search Tree Given the root node of a binary search tree (BST) and a value to be inserted into the tree, insert the value into the BST. Return the root node...
Leetcode学习笔记:#703. Kth Largest Element in a Stream Design a class to find the kth largest element in a stream. Note that it is the kth largest element in the sorted order, not the kth distinct ...
Leetcode学习笔记:#921. Minimum Add to Make Parentheses Valid Given a string S of ‘(’ and ‘)’ parentheses, we add the minimum number of parentheses ( ‘(’ or ‘)’, and in any positions ) so that...
Leetcode学习笔记:#852. Peak Index in a Mountain Array Let’s call an array A a mountain if the following properties hold: A.length >= 3 There exists some 0 < i < A.length - 1 such that A[0] ...
个人刷题记录,帮助入门者开始LeetCode。尽量争取一题多解,将每种解法解释清晰。 如何使用? 使用搜索功能(浏览器上快捷键一般是Ctrl+F)搜索题号,即可查看解法思路介绍的文章。 需要注意: 为了绝大多数国内用户...
Leetcode学习笔记:#442. Find All Duplicates in an Array Given an array of integers, 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements that ...
谷歌师兄的leetcode刷题笔记预测泰坦尼克号上的生存 我们将应用机器学习工具来预测哪些乘客在泰坦尼克号悲剧中幸存下来。 动机 在这项研究中,探索性分析 (EDA) 与泰坦尼克号邮轮乘客数据集的可视化以及不同的 ML ...
Leetcode学习笔记:#700. Search in a Binary Search Tree Given the root node of a binary search tree (BST) and a value. You need to find the node in the BST that the node’s value equals the given value...
leecode学习记录leecode学习记录二删除排序数组中的重复项解题思路代码 leecode学习记录二 删除排序数组中的重复项 难度:简单 给定一个排序数组,你需要在原地删除重复出现的元素,使得每个元素只出现一次,...
数据结构与算法学习笔记 基础概念 数组下标都是从0开始的。 数组的元素是不能删的,只能覆盖。 数组内存空间的地址是连续的。正是因为数组的在内存空间的地址是连续的,所以我们在删除或者增添元素的时候,就难免要...
leetcode学习记录leetcode学习记录十六存在重复元素II解题思路代码总结 leetcode学习记录十六 存在重复元素II 难度:简单 给定一个整数数组和一个整数 k,判断数组中是否存在两个不同的索引 i 和 j,使得 nums [i] =...
leetcode学习记录leetcode学习记录三十六至少是其他数字两倍的最大值解题思路代码总结 leetcode学习记录三十六 至少是其他数字两倍的最大值 难度:简单 在一个给定的数组nums中,总是存在一个最大元素 。 查找数组中...
Leetcode学习笔记:#448. Find All Numbers Disappeared in an Array Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the ...
Leetcode学习笔记:#671. Second Minimum Node In a Binary Tree Given a non-empty special binary tree consisting of nodes with the non-negative value, where each node in this tree has exactly two or zero...
多数元素 关键词:hashmap
Leetcode学习笔记:#429. N-ary Tree Level Order Traversal Given an n-ary tree, return the level order traversal of its nodes’ values. (ie, from left to right, level by level). For example, given a 3-...
Leetcode学习笔记:#989. Add to Array-Form of Integer For a non-negative integer X, the array-form of X is an array of its digits in left to right order. For example, if X = 1231, then the array form ...
Leetcode学习笔记:#559. Maximum Depth of N-ary Tree Given a n-ary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest ...
谷歌师兄的leetcode刷题笔记GunnerDog.github.io 天空观察者.tech 生物 我要去 EWU 学习拼贴画,成为一名平面设计师。 我希望有一天能用它为我想在未来开设的一家咖啡店创建自己的网站,并出售咖啡和艺术品。 我喜欢...
1 LeetCode是什么? LeetCode是一个在线的编程测试平台,国内也有类似的Online Judge平台。程序开发人员可以通过在线刷题,提高对于算法和数据结构的理解能力,夯实自己的编程基础。对于找工作的小伙伴十分有好处。...
这个库是用来记录leetcode的问答以及解题过程中的一些笔记。 现在用于解决问题的主要语言是C++。 问题的索引被评论以供以后查看和搜索。 暂时跳过的一些问题 Linux Shell问题:192 - 195 SQL问题:196 - 197
Leetcode学习笔记:#19. Remove Nth Node From End of List Given a linked list, remove the n-th node from the end of list and return its head. 实现: public ListNode removeNthFromEnd(ListNode head, int n...