View Code 743. Network Delay Time https://leetcode.com/problems/network-delay-time/description/ View Code 一刷使用DFS没AC,debug很久,没理解错哪了。二刷使用BFS就AC。三刷使用Dijkstra算法,效率不如BFS,按理说不应该这样,还可以可以继续改进,因为BFS是Dijkstra的降级。 原来leetcode后端是用python写的!以后...
The fifth event (5, 10) can be booked, as it does not use time 10 which is already double booked. The sixth event (25, 55) can be booked, as the time in [25, 40) will be double booked with the third event; the time [40, 50) will be single booked, and the time [50,...
Exclusive Time of Functions Go Medium O(n) O(n) 682. Baseball Game Go Easy O(n) O(n) 726. Number of Atoms Go Hard O(n) O(n) 735. Asteroid Collision Go Medium O(n) O(n) 739. Daily Temperatures Go Medium O(n) O(n) 844. Backspace String Compare Go Easy O(n) O(n) ...
739 Daily Temperatures 题意:给定一个数组表示每天温度。对于每个位置i,请求出第i天之后,第一次温度超过这天需要等多少天。如果不存在,则结果视为0。 难度:medium 解法:翻译过来,就是i之后,第一个符合nums[j]>nums[i]的j-i值。一看,就很像单调栈、单调队列之类的做法。那就用栈吧。如果遇到更小的元素,就...
Python Time Complexity Bit Manipulation #TitleSolutionTimeSpaceDifficultyTagNote 0136 Single Number C++ Python O(n) O(1) Easy 0137 Single Number II C++ Python O(n) O(1) Medium 0190 Reverse Bits C++ Python O(1) O(1) Easy 0191 Number of 1 Bits C++ Python O(1) O(1) Easy 0201...
It monitors front-end logs and analyzes front-end health status in real time. Daily-Interview-Question 我是依扬(木易杨),公众号「高级前端进阶」作者,每天搞定一道前端大厂面试题,祝大家天天进步,一年后会看到不一样的自己。 33-js-concepts 📜 每个 JavaScript 工程师都应懂的33个概念 @leonardomso ...
WITHRECURSIVEDateSeriesAS(SELECTproduct_id, period_start::timestampASsale_date,-- Explicitly cast period_start to timestampperiod_end, average_daily_salesFROMSales-- Assuming your table name is sales_dataUNIONALLSELECTproduct_id, sale_date+INTERVAL'1 DAY', period_end, average_daily_salesFROMDate...
1450 Number of Students Doing Homework at a Given Time C++ Python O(n) O(1) Easy 1460 Make Two Arrays Equal by Reversing Sub-arrays C++ Python O(n) O(n) Easy 1464 Maximum Product of Two Elements in an Array C++ Python O(n) O(1) Easy 1465 Maximum Area of a Piece of Cake...
#TitleSolutionTimeSpaceDifficultyTagNote 1310 XOR Queries of a Subarray C++ Python O(n) O(1) Medium 1318 Minimum Flips to Make a OR b Equal to c C++ Python O(1) O(1) Medium 1342 Number of Steps to Reduce a Number to Zero C++ Python O(logn) O(1) Easy 1558 Minimum Numbers ...
Repository files navigation README Wei Li on LeetCode 算法理论基础 《算法导论》和《算法4》 时间复杂度和空间复杂度权衡,时间复杂度的提升是以空间复杂度为代价的 仔细观察,LeetCode 上对每一次代码的提交的 执行时间 && 消耗内存 效率= 算法效率 + 编程语言效率 + 计算机硬件效率 ...