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 2025-11-26
🔴2435.paths-in-matrix-whose-sum-is-divisible-by-k
🏷️ Tags
#array #dynamic_programming #matrix
🔴2435.paths-in-matrix-whose-sum-is-divisible-by-k
🏷️ Tags
#array #dynamic_programming #matrix
Telegraph
paths-in-matrix-whose-sum-is-divisible-by-k
给你一个下标从 0 开始的 m x n 整数矩阵 grid 和一个整数 k 。你从起点 (0, 0) 出发,每一步只能往 下 或者往 右 ,你想要到达终点 (m - 1, n - 1) 。 请你返回路径和能被 k 整除的路径数目,由于答案可能很大,返回答案对 109 + 7 取余 的结果。 示例 1: 输入:grid = [[5,2,4],[3,0,5],[0,7,2]], k = 3 输出:2 解释:有两条路径满足路径上元素的和能被 k 整除。 第一条路径为上图中用红色标注的路径,和为 5 + 2…
leetcode.com 2025-11-26
🔴2435.paths-in-matrix-whose-sum-is-divisible-by-k
🏷️ Tags
#array #dynamic_programming #matrix
🔴2435.paths-in-matrix-whose-sum-is-divisible-by-k
🏷️ Tags
#array #dynamic_programming #matrix
Telegraph
paths-in-matrix-whose-sum-is-divisible-by-k
You are given a 0-indexed m x n integer matrix grid and an integer k. You are currently at position (0, 0) and you want to reach position (m - 1, n - 1) moving only down or right. Return the number of paths where the sum of the elements on the path is divisible…