leetcode.cn 2025-06-03
🔴1298.maximum-candies-you-can-get-from-boxes
🏷️ Tags
#breadth_first_search #graph #array
🔴1298.maximum-candies-you-can-get-from-boxes
🏷️ Tags
#breadth_first_search #graph #array
Telegraph
maximum-candies-you-can-get-from-boxes
给你 n 个盒子,每个盒子的格式为 [status, candies, keys, containedBoxes] ,其中:
leetcode.com 2025-06-03
🔴1298.maximum-candies-you-can-get-from-boxes
🏷️ Tags
#breadth_first_search #graph #array
🔴1298.maximum-candies-you-can-get-from-boxes
🏷️ Tags
#breadth_first_search #graph #array
Telegraph
maximum-candies-you-can-get-from-boxes
You have n boxes labeled from 0 to n - 1. You are given four arrays: status, candies, keys, and containedBoxes where:
leetcode.cn 2025-10-03
🔴407.trapping-rain-water-ii
🏷️ Tags
#breadth_first_search #array #matrix #heap_priority_queue
🔴407.trapping-rain-water-ii
🏷️ Tags
#breadth_first_search #array #matrix #heap_priority_queue
Telegraph
trapping-rain-water-ii
给你一个 m x n 的矩阵,其中的值均为非负整数,代表二维高度图每个单元的高度,请计算图中形状最多能接多少体积的雨水。 示例 1: 输入: heightMap = [[1,4,3,1,3,2],[3,2,1,3,2,4],[2,3,3,2,3,1]] 输出: 4 解释: 下雨后,雨水将会被上图蓝色的方块中。总的接雨水量为1+2+1=4。 示例 2: 输入: heightMap = [[3,3,3,3,3],[3,2,2,2,3],[3,2,1,2,3],[3,2,2,2,3],[3,3,3,3,3]]…
leetcode.com 2025-10-03
🔴407.trapping-rain-water-ii
🏷️ Tags
#breadth_first_search #array #matrix #heap_priority_queue
🔴407.trapping-rain-water-ii
🏷️ Tags
#breadth_first_search #array #matrix #heap_priority_queue
Telegraph
trapping-rain-water-ii
Given an m x n integer matrix heightMap representing the height of each unit cell in a 2D elevation map, return the volume of water it can trap after raining. Example 1: Input: heightMap = [[1,4,3,1,3,2],[3,2,1,3,2,4],[2,3,3,2,3,1]] Output: 4 Explanation:…
leetcode.cn 2025-10-05
🟡417.pacific-atlantic-water-flow
🏷️ Tags
#depth_first_search #breadth_first_search #array #matrix
🟡417.pacific-atlantic-water-flow
🏷️ Tags
#depth_first_search #breadth_first_search #array #matrix
Telegraph
pacific-atlantic-water-flow
有一个 m × n 的矩形岛屿,与 太平洋 和 大西洋 相邻。 “太平洋” 处于大陆的左边界和上边界,而 “大西洋” 处于大陆的右边界和下边界。 这个岛被分割成一个由若干方形单元格组成的网格。给定一个 m x n 的整数矩阵 heights , heights[r][c] 表示坐标 (r, c) 上单元格 高于海平面的高度 。 岛上雨水较多,如果相邻单元格的高度 小于或等于 当前单元格的高度,雨水可以直接向北、南、东、西流向相邻单元格。水可以从海洋附近的任何单元格流入海洋。 返回网格坐标 result 的…
leetcode.com 2025-10-05
🟡417.pacific-atlantic-water-flow
🏷️ Tags
#depth_first_search #breadth_first_search #array #matrix
🟡417.pacific-atlantic-water-flow
🏷️ Tags
#depth_first_search #breadth_first_search #array #matrix
Telegraph
pacific-atlantic-water-flow
There is an m x n rectangular island that borders both the Pacific Ocean and Atlantic Ocean. The Pacific Ocean touches the island's left and top edges, and the Atlantic Ocean touches the island's right and bottom edges. The island is partitioned into a grid…
leetcode.cn 2025-10-06
🔴778.swim-in-rising-water
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #array #binary_search #matrix #heap_priority_queue
🔴778.swim-in-rising-water
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #array #binary_search #matrix #heap_priority_queue
Telegraph
swim-in-rising-water
在一个 n x n 的整数矩阵 grid 中,每一个方格的值 grid[i][j] 表示位置 (i, j) 的平台高度。 当开始下雨时,在时间为 t 时,水池中的水位为 t 。你可以从一个平台游向四周相邻的任意一个平台,但是前提是此时水位必须同时淹没这两个平台。假定你可以瞬间移动无限距离,也就是默认在方格内部游动是不耗时的。当然,在你游泳的时候你必须待在坐标方格里面。 你从坐标方格的左上平台 (0,0) 出发。返回 你到达坐标方格的右下平台 (n-1, n-1) 所需的最少时间 。 示例 1: 输入:…
leetcode.com 2025-10-06
🔴778.swim-in-rising-water
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #array #binary_search #matrix #heap_priority_queue
🔴778.swim-in-rising-water
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #array #binary_search #matrix #heap_priority_queue
Telegraph
swim-in-rising-water
You are given an n x n integer matrix grid where each value grid[i][j] represents the elevation at that point (i, j). It starts raining, and water gradually rises over time. At time t, the water level is t, meaning any cell with elevation less than equal…
leetcode.cn 2025-10-19
🟡1625.lexicographically-smallest-string-after-applying-operations
🏷️ Tags
#depth_first_search #breadth_first_search #string #enumeration
🟡1625.lexicographically-smallest-string-after-applying-operations
🏷️ Tags
#depth_first_search #breadth_first_search #string #enumeration
Telegraph
lexicographically-smallest-string-after-applying-operations
给你一个字符串 s 以及两个整数 a 和 b 。其中,字符串 s 的长度为偶数,且仅由数字 0 到 9 组成。 你可以在 s 上按任意顺序多次执行下面两个操作之一:
leetcode.com 2025-10-19
🟡1625.lexicographically-smallest-string-after-applying-operations
🏷️ Tags
#depth_first_search #breadth_first_search #string #enumeration
🟡1625.lexicographically-smallest-string-after-applying-operations
🏷️ Tags
#depth_first_search #breadth_first_search #string #enumeration
Telegraph
lexicographically-smallest-string-after-applying-operations
You are given a string s of even length consisting of digits from 0 to 9, and two integers a and b. You can apply either of the following two operations any number of times and in any order on s:
leetcode.cn 2025-11-06
🟡3607.power-grid-maintenance
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #graph #array #hash_table #ordered_set #heap_priority_queue
🟡3607.power-grid-maintenance
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #graph #array #hash_table #ordered_set #heap_priority_queue
Telegraph
power-grid-maintenance
给你一个整数 c,表示 c 个电站,每个电站有一个唯一标识符 id,从 1 到 c 编号。 这些电站通过 n 条 双向 电缆互相连接,表示为一个二维数组 connections,其中每个元素 connections[i] = [ui, vi] 表示电站 ui 和电站 vi 之间的连接。直接或间接连接的电站组成了一个 电网 。 最初,所有 电站均处于在线(正常运行)状态。 另给你一个二维数组 queries,其中每个查询属于以下 两种类型之一 :
leetcode.com 2025-11-06
🟡3607.power-grid-maintenance
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #graph #array #hash_table #ordered_set #heap_priority_queue
🟡3607.power-grid-maintenance
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #graph #array #hash_table #ordered_set #heap_priority_queue
Telegraph
power-grid-maintenance
You are given an integer c representing c power stations, each with a unique identifier id from 1 to c (1‑based indexing). These stations are interconnected via n bidirectional cables, represented by a 2D array connections, where each element connections[i]…
leetcode.cn 2025-12-19
🔴2092.find-all-people-with-secret
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #graph #sorting
🔴2092.find-all-people-with-secret
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #graph #sorting
Telegraph
find-all-people-with-secret
给你一个整数 n ,表示有 n 个专家从 0 到 n - 1 编号。另外给你一个下标从 0 开始的二维整数数组 meetings ,其中 meetings[i] = [xi, yi, timei] 表示专家 xi 和专家 yi 在时间 timei 要开一场会。一个专家可以同时参加 多场会议 。最后,给你一个整数 firstPerson 。 专家 0 有一个 秘密 ,最初,他在时间 0 将这个秘密分享给了专家 firstPerson 。接着,这个秘密会在每次有知晓这个秘密的专家参加会议时进行传播。更正式的表达是,每次会议,如果专家…
leetcode.com 2025-12-19
🔴2092.find-all-people-with-secret
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #graph #sorting
🔴2092.find-all-people-with-secret
🏷️ Tags
#depth_first_search #breadth_first_search #union_find #graph #sorting
Telegraph
find-all-people-with-secret
You are given an integer n indicating there are n people numbered from 0 to n - 1. You are also given a 0-indexed 2D integer array meetings where meetings[i] = [xi, yi, timei] indicates that person xi and person yi have a meeting at timei. A person may attend…