leetcode.cn 2025-05-26
🔴1857.largest-color-value-in-a-directed-graph
🏷️ Tags
#graph #topological_sort #memoization #hash_table #dynamic_programming #counting
🔴1857.largest-color-value-in-a-directed-graph
🏷️ Tags
#graph #topological_sort #memoization #hash_table #dynamic_programming #counting
Telegraph
largest-color-value-in-a-directed-graph
给你一个 有向图 ,它含有 n 个节点和 m 条边。节点编号从 0 到 n - 1 。 给你一个字符串 colors ,其中 colors[i] 是小写英文字母,表示图中第 i 个节点的 颜色 (下标从 0 开始)。同时给你一个二维数组 edges ,其中 edges[j] = [aj, bj] 表示从节点 aj 到节点 bj 有一条 有向边 。 图中一条有效 路径 是一个点序列 x1 -> x2 -> x3 -> ... -> xk ,对于所有 1 <= i < k ,从 xi 到 xi+1 在图中有一条有向边。路径的…
leetcode.com 2025-05-26
🔴1857.largest-color-value-in-a-directed-graph
🏷️ Tags
#graph #topological_sort #memoization #hash_table #dynamic_programming #counting
🔴1857.largest-color-value-in-a-directed-graph
🏷️ Tags
#graph #topological_sort #memoization #hash_table #dynamic_programming #counting
Telegraph
largest-color-value-in-a-directed-graph
There is a directed graph of n colored nodes and m edges. The nodes are numbered from 0 to n - 1. You are given a string colors where colors[i] is a lowercase English letter representing the color of the ith node in this graph (0-indexed). You are also given…
leetcode.cn 2025-05-28
🟡3372.maximize-the-number-of-target-nodes-after-connecting-trees-i
🏷️ Tags
#tree #depth_first_search #breadth_first_search
🟡3372.maximize-the-number-of-target-nodes-after-connecting-trees-i
🏷️ Tags
#tree #depth_first_search #breadth_first_search
Telegraph
maximize-the-number-of-target-nodes-after-connecting-trees-i
有两棵 无向 树,分别有 n 和 m 个树节点。两棵树中的节点编号分别为[0, n - 1] 和 [0, m - 1] 中的整数。 给你两个二维整数 edges1 和 edges2 ,长度分别为 n - 1 和 m - 1 ,其中 edges1[i] = [ai, bi] 表示第一棵树中节点 ai 和 bi 之间有一条边,edges2[i] = [ui, vi] 表示第二棵树中节点 ui 和 vi 之间有一条边。同时给你一个整数 k 。 如果节点 u 和节点 v 之间路径的边数小于等于 k ,那么我们称节点…
leetcode.com 2025-05-28
🟡3372.maximize-the-number-of-target-nodes-after-connecting-trees-i
🏷️ Tags
#tree #depth_first_search #breadth_first_search
🟡3372.maximize-the-number-of-target-nodes-after-connecting-trees-i
🏷️ Tags
#tree #depth_first_search #breadth_first_search
Telegraph
maximize-the-number-of-target-nodes-after-connecting-trees-i
There exist two undirected trees with n and m nodes, with distinct labels in ranges [0, n - 1] and [0, m - 1], respectively. You are given two 2D integer arrays edges1 and edges2 of lengths n - 1 and m - 1, respectively, where edges1[i] = [ai, bi] indicates…
leetcode.cn 2025-05-29
🔴3373.maximize-the-number-of-target-nodes-after-connecting-trees-ii
🏷️ Tags
#tree #depth_first_search #breadth_first_search
🔴3373.maximize-the-number-of-target-nodes-after-connecting-trees-ii
🏷️ Tags
#tree #depth_first_search #breadth_first_search
Telegraph
maximize-the-number-of-target-nodes-after-connecting-trees-ii
有两棵 无向 树,分别有 n 和 m 个树节点。两棵树中的节点编号分别为[0, n - 1] 和 [0, m - 1] 中的整数。 给你两个二维整数 edges1 和 edges2 ,长度分别为 n - 1 和 m - 1 ,其中 edges1[i] = [ai, bi] 表示第一棵树中节点 ai 和 bi 之间有一条边,edges2[i] = [ui, vi] 表示第二棵树中节点 ui 和 vi 之间有一条边。 如果节点 u 和节点 v 之间路径的边数是偶数,那么我们称节点 u 是节点 v 的 目标节…
leetcode.com 2025-05-29
🔴3373.maximize-the-number-of-target-nodes-after-connecting-trees-ii
🏷️ Tags
#tree #depth_first_search #breadth_first_search
🔴3373.maximize-the-number-of-target-nodes-after-connecting-trees-ii
🏷️ Tags
#tree #depth_first_search #breadth_first_search
Telegraph
maximize-the-number-of-target-nodes-after-connecting-trees-ii
There exist two undirected trees with n and m nodes, labeled from [0, n - 1] and [0, m - 1], respectively. You are given two 2D integer arrays edges1 and edges2 of lengths n - 1 and m - 1, respectively, where edges1[i] = [ai, bi] indicates that there is an…
leetcode.cn 2025-06-01
🟡2929.distribute-candies-among-children-ii
🏷️ Tags
#math #combinatorics #enumeration
🟡2929.distribute-candies-among-children-ii
🏷️ Tags
#math #combinatorics #enumeration
Telegraph
distribute-candies-among-children-ii
给你两个正整数 n 和 limit 。 请你将 n 颗糖果分给 3 位小朋友,确保没有任何小朋友得到超过 limit 颗糖果,请你返回满足此条件下的 总方案数 。 示例 1: 输入:n = 5, limit = 2 输出:3 解释:总共有 3 种方法分配 5 颗糖果,且每位小朋友的糖果数不超过 2 :(1, 2, 2) ,(2, 1, 2) 和 (2, 2, 1) 。 示例 2: 输入:n = 3, limit = 3 输出:10 解释:总共有 10 种方法分配 3 颗糖果,且每位小朋友的糖果数不超过…
leetcode.com 2025-06-01
🟡2929.distribute-candies-among-children-ii
🏷️ Tags
#math #combinatorics #enumeration
🟡2929.distribute-candies-among-children-ii
🏷️ Tags
#math #combinatorics #enumeration
Telegraph
distribute-candies-among-children-ii
You are given two positive integers n and limit. Return the total number of ways to distribute n candies among 3 children such that no child gets more than limit candies. Example 1: Input: n = 5, limit = 2 Output: 3 Explanation: There are 3 ways to distribute…
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 2025-06-04
🟡3403.find-the-lexicographically-largest-string-from-the-box-i
🏷️ Tags
#two_pointers #string #enumeration
🟡3403.find-the-lexicographically-largest-string-from-the-box-i
🏷️ Tags
#two_pointers #string #enumeration
Telegraph
find-the-lexicographically-largest-string-from-the-box-i
给你一个字符串 word 和一个整数 numFriends。 Alice 正在为她的 numFriends 位朋友组织一个游戏。游戏分为多个回合,在每一回合中:
leetcode.com 2025-06-04
🟡3403.find-the-lexicographically-largest-string-from-the-box-i
🏷️ Tags
#two_pointers #string #enumeration
🟡3403.find-the-lexicographically-largest-string-from-the-box-i
🏷️ Tags
#two_pointers #string #enumeration
Telegraph
find-the-lexicographically-largest-string-from-the-box-i
You are given a string word, and an integer numFriends. Alice is organizing a game for her numFriends friends. There are multiple rounds in the game, where in each round: