Given the root of a tree, you are asked to find the most frequent subtree sum. The subtree sum of a node is defined as the sum of all the node values formed by the subtree rooted at that node (including the node itself). So what is the most frequent subtr
package _interview_question /** * Problem: Find the most frequent element in all intervals Given an unsorted list of start and end time ( a range basically), find any number within all the ranges that occurs in maximum number of intervals. Example: [[1,
time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given two integers nn and mm. You have to construct the array aa of length nn consisting of non-negative integers (i.e. integer
05月 A happy life isn't hard to come by, the trick is to not regret the choices you made along the way. 平安喜乐的日子不难有，关键在于不要为你做出的任何选择而感到后悔。——2020.05.1 The deal is in the detail.细节觉得成败。——2020.05.02 You are fully capable o
最多有K个不同字符的最长子串。题意就不解释了，参见159题。例子， Example 1: Input: s = "eceba", k = 2 Output: 3 Explanation: T is "ece" which its length is 3. Example 2: Input: s = "aa", k = 1 Output: 2 Explanation: T is "aa" which its length
https://www.daolf.com/posts/best-programming-books/ This article is a follow up of the one I did about the the most recommended startup books of all-time. If you’ve read this one recently. I guess you can jump straight to the results. There are countless
%matplotlib inline import pandas as pd import matplotlib.pyplot as plt import math import pytz tz = pytz.timezone('America/New_York') def geodistance(lng1, lat1, lng2, lat2): lng1, lat1, lng2, lat2 = map(math.radians, [float(lng1), float(l
一、题目说明 11.Container With Most Water，这个题目难度是Medium。 二、我的做法 乍一看，简单啊，两个for循环就可以了，我在本地写的。 #include<iostream> #include<vector> #include<math.h> using namespace std; class Solution{ public: int maxArea(vector<int> &
Given the root of a tree, you are asked to find the most frequent subtree sum. The subtree sum of a node is defined as the sum of all the node values formed by the subtree rooted at that node (including the node itself). So what is the most frequent subtr
A. Zoning Restrictions Again ou are planning to build housing on a street. There are n spots available on the street on which you can build a house. The spots are labeled from 1 to n from left to right. In each spot, you can build a house with an
Welcome to Pornhub’s 7th annual Year in Review, where we bring you 2019’s hottest trends, terms, searches, and a recap of everything that happened this year. If you follow our Pornhub Insights blog, you already know that 2019 was a juicy year – jam-pack
CMP71001Assignment 1 Risk assessment.Due DateLearning 16th Dec 2019 11.00pm (QLD Time)OutcomesGraduate1, 2Attributes 3, 4 & 5Weight 20% of overall unit assessmentSuggestion This assignment is developmental and cumulative. You are strongly advised tost
高度上只能找矮的柱子做高，宽为左右之柱的距离 function maxArea(height) { //根据最宽来找最高， 最宽为right-left var area=0; var l=0,r= height.length-1; while(l<r){ if(height[l]<height[r]){ //右边够高， 那么尝试在左边找一些高的柱子
给定大量手机用户通话记录，找出其中通话次数最多的聊天狂人。 输入格式: 输入首先给出正整数N（≤10^5），为通话记录条数。随后N行，每行给出一条通话记录。简单起见，这里只列出拨出方和接收方的11位数字构成的手机号码，其中以空格分隔。 输出格式: 在一行中给出聊天狂人的手机号码及
题目 你有一个目录，放了你一个月的日记，都是 txt，为了避免分词的问题，假设内容都是英文，请统计出你认为每篇日记最重要的词。 很难客观的说每篇日记中最重要的词是什么，所以在这里就仅仅是将每篇日记中出现频数最高的词作为最重要的词。同时过滤掉一些词诸如【I，is，are，has，and，or】等等 代
装水最多的容器。算是two pointer类型的题里面比较弱智的一道吧。提议是用数组表示出一堆木桶的高度，问如果用其中两个木桶做左右的墙壁，能储存的水量最大是多少。搞懂题意，代码基本也就出来了。 时间O(n) 空间O(1) 1 /** 2 * @param {number[]} height 3 * @return {number} 4
1. problem description Given n non-negative integers a1, a2, …, an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-
双指针 class Solution { public: int maxArea(vector<int>& height) { //从两边往中间枚举， 保留最大值，优先舍弃最短边 int ans = 0; int l = 0, r = height.size() - 1; while(l < r){ int h = min(height[l], height[r]
原题链接：https://leetcode.com/problems/container-with-most-water/ 找出在n条垂直于x轴的线中能够组成的最大容器面积的两条线，容器不能倾斜，n的最小值为2. 解题思路： 1.暴力破解 设起始点为i，终点为j，找到能使面积最大的i和j。 class Solution: def maxArea(self, height
原文链接：http://www.cnblogs.com/wolfe/p/3157059.html Good afternoon everyone, I want to tell you that I’d like to travel the Inner Mongolia Grasslands best. There are no big house, no big mountain, no big river, just a lot of
class Solution: def maxArea(self, height): if len(height)==2: return min(height[0], height[1]) lf=0 rg=len(height)-1 max_area=0 for i in range(len(height)-1): shorter_line = min(height[lf
原文链接：http://www.cnblogs.com/SharkXu/archive/2007/02/06/Overview_Shark_DB_Expert_V20.html 1. Connect multi-database in the same time. Exampe:Oracle,Sybase,MS SQL,DB2, MS Access,MySQL,Paradox,DBF,MS Execl,Text. Please click he
令 $m>n>1$ 为正整数. 一个集合含有 $m$ 个给定的实数. 我们从中选取任意 $n$ 个数, 记作 $a_1$, $a_2$, $\dotsc$, $a_n$, 并提问: 是否 $a_1<a_2<\dotsb < a_n$ 正确? 证明: 我们可以将所有的 $m$ 个数排序, 进而最多可以问 $n!-n^2+2n-2+m(n-1)(1+\l
"""一篇英文文档中找出频数最多的10个单词collections: Counter 提供计数器工具以支持方便和快速的计数 most_common(n) 返回n个最常见元素及其计数的列表，从最常见到最少。 如果省略nNone，则 most_common()返回计数器中的所有元素。"""import re
题目描述： Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a conta
