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…