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https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips/ https://leetcode.com/p...
第一步,先计算出每个产品每个订单日期的排名(倒序),如果最新的日期内有多笔订单,则需要全部返回。 针对这类分组内排序后取前N名的需求,有三个分析函数可以使用,分别是:row_number、rank、dense_rank。 根据需求,这里比较适合使用的是rank和dense_rank,然后限定排序序号为1即可。 第二步,关联出返回结果中需要的pr...
200 Number of Islands ★★ 547 695 733 827 1162 grid + connected components 841 Keys and Rooms ★★ 1202 DFS, connected components 207 Course Schedule ★★★ 210 802 topology sorting 399 Evaluate Division ★★★ 839 952 990 721 737 union find 785 Is Graph Bipartite? ★★★ 886 104...
岛屿数量 Problem: 思路 每到达一个岛屿,干掉一个岛屿。 复杂度 时间复杂度: O(n) 空间复杂度: O(1) Talk is cheap, show you my code Java 深度优先搜索 1 55 0pol ・ 2025.04.16 C++ 一题多解 DFS/并查集 求解 经典网格图问题 Problem: *注意:题目中的矩阵存的不是 int 型数据,而是 char 型...
Letter Combinations of a Phone Number Approach Complexity Code 78. Subsets Approach Complexity Code 90. Subsets II Approach Complexity Code 39. Combination Sums Approach Backtracking three elements Complexity NeetCode 150 III. LeetCode Problem List 二分查找 移除元素 滑动窗口 螺旋矩阵 Solutions 704. 二...
1020_number_of_enclaves.cpp Adding Leetcode Solutions Jul 2, 2023 1025_divisor_game.cpp Adding Leetcode Solutions Jul 2, 2023 104_max_depth_binary_tree.cpp Adding Leetcode Solutions Jul 2, 2023 104_max_depth_of_binary_tree.cpp Adding Leetcode Solutions Jul 2, 2023 105_binary_tree_from_...
704 Binary Search Easy 33.7% 705 Design HashSet Easy 35.7% 706 Design HashMap Easy 42.6% 707 Design Linked List Easy 16.6% 708 Insert into a Cyclic Sorted List $ Medium 21.3% 709 To Lower Case Easy 74.4% 710 Random Pick with Blacklist Hard 29.4% 711 Number of Distinct Islands II $...
Every problem will be solved in C++; part of the problems will be solved in Java also. I will try my best to support more language in the future :) Please feel free to contact me if you have any questions with this repo:) email: liuyubobobo@gmail.com 大家好,欢迎大家来到我的 Leet...
: HDU 1166 update: query: HDU 1754 I Hate It update: query: HDU 1394 Minimum Inversion Number update: query: HDU 2795 Billboard query: (updatequery) 2. : HDU 1698 Just a Hook update: ( query, 1 ) POJ 3468 A Simple Problem with Integers update: query: POJ 2528 Mayor’s posters +...