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.com 2025-10-07
🟡1488.avoid-flood-in-the-city
🏷️ Tags
#greedy #array #hash_table #binary_search #heap_priority_queue
🟡1488.avoid-flood-in-the-city
🏷️ Tags
#greedy #array #hash_table #binary_search #heap_priority_queue
Telegraph
avoid-flood-in-the-city
Your country has an infinite number of lakes. Initially, all the lakes are empty, but when it rains over the nth lake, the nth lake becomes full of water. If it rains over a lake that is full of water, there will be a flood. Your goal is to avoid floods in…
leetcode.cn 2025-11-04
🟢3318.find-x-sum-of-all-k-long-subarrays-i
🏷️ Tags
#array #hash_table #sliding_window #heap_priority_queue
🟢3318.find-x-sum-of-all-k-long-subarrays-i
🏷️ Tags
#array #hash_table #sliding_window #heap_priority_queue
Telegraph
find-x-sum-of-all-k-long-subarrays-i
给你一个由 n 个整数组成的数组 nums,以及两个整数 k 和 x。 数组的 x-sum 计算按照以下步骤进行:
leetcode.com 2025-11-04
🟢3318.find-x-sum-of-all-k-long-subarrays-i
🏷️ Tags
#array #hash_table #sliding_window #heap_priority_queue
🟢3318.find-x-sum-of-all-k-long-subarrays-i
🏷️ Tags
#array #hash_table #sliding_window #heap_priority_queue
Telegraph
find-x-sum-of-all-k-long-subarrays-i
You are given an array nums of n integers and two integers k and x. The x-sum of an array is calculated by the following procedure:
leetcode.cn 2025-11-05
🔴3321.find-x-sum-of-all-k-long-subarrays-ii
🏷️ Tags
#array #hash_table #sliding_window #heap_priority_queue
🔴3321.find-x-sum-of-all-k-long-subarrays-ii
🏷️ Tags
#array #hash_table #sliding_window #heap_priority_queue
Telegraph
find-x-sum-of-all-k-long-subarrays-ii
给你一个由 n 个整数组成的数组 nums,以及两个整数 k 和 x。 数组的 x-sum 计算按照以下步骤进行:
leetcode.com 2025-11-05
🔴3321.find-x-sum-of-all-k-long-subarrays-ii
🏷️ Tags
#array #hash_table #sliding_window #heap_priority_queue
🔴3321.find-x-sum-of-all-k-long-subarrays-ii
🏷️ Tags
#array #hash_table #sliding_window #heap_priority_queue
Telegraph
find-x-sum-of-all-k-long-subarrays-ii
You are given an array nums of n integers and two integers k and x. The x-sum of an array is calculated by the following procedure:
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]…