leetcode.cn 2026-06-25
🟡3737.count-subarrays-with-majority-element-i
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #counting #prefix_sum #merge_sort
🟡3737.count-subarrays-with-majority-element-i
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #counting #prefix_sum #merge_sort
Telegraph
count-subarrays-with-majority-element-i
给你一个整数数组 nums 和一个整数 target。
leetcode.com 2026-06-25
🟡3737.count-subarrays-with-majority-element-i
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #counting #prefix_sum #merge_sort
🟡3737.count-subarrays-with-majority-element-i
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #counting #prefix_sum #merge_sort
Telegraph
count-subarrays-with-majority-element-i
You are given an integer array nums and an integer target. Return the number of subarrays of nums in which target is the majority element. The majority element of a subarray is the element that appears strictly more than half of the times in that subarray.…
leetcode.cn 2026-07-17
🔴3312.sorted-gcd-pair-queries
🏷️ Tags
#array #hash_table #math #binary_search #combinatorics #counting #number_theory #prefix_sum
🔴3312.sorted-gcd-pair-queries
🏷️ Tags
#array #hash_table #math #binary_search #combinatorics #counting #number_theory #prefix_sum
Telegraph
sorted-gcd-pair-queries
给你一个长度为 n 的整数数组 nums 和一个整数数组 queries 。 gcdPairs 表示数组 nums 中所有满足 0 <= i < j < n 的数对 (nums[i], nums[j]) 的 最大公约数 升序 排列构成的数组。 对于每个查询 queries[i] ,你需要找到 gcdPairs 中下标为 queries[i] 的元素。
leetcode.com 2026-07-17
🔴3312.sorted-gcd-pair-queries
🏷️ Tags
#array #hash_table #math #binary_search #combinatorics #counting #number_theory #prefix_sum
🔴3312.sorted-gcd-pair-queries
🏷️ Tags
#array #hash_table #math #binary_search #combinatorics #counting #number_theory #prefix_sum
Telegraph
sorted-gcd-pair-queries
You are given an integer array nums of length n and an integer array queries. Let gcdPairs denote an array obtained by calculating the GCD of all possible pairs (nums[i], nums[j]), where 0 <= i < j < n, and then sorting these values in ascending order. For…
leetcode.cn 2026-07-28
🟡3517.smallest-palindromic-rearrangement-i
🏷️ Tags
#string #counting_sort #sorting
🟡3517.smallest-palindromic-rearrangement-i
🏷️ Tags
#string #counting_sort #sorting
Telegraph
smallest-palindromic-rearrangement-i
给你一个 回文 字符串 s。 返回 s 的按字典序排列的 最小 回文排列。 如果一个字符串从前往后和从后往前读都相同,那么这个字符串是一个 回文 字符串。 排列 是字符串中所有字符的重排。
leetcode.com 2026-07-28
🟡3517.smallest-palindromic-rearrangement-i
🏷️ Tags
#string #counting_sort #sorting
🟡3517.smallest-palindromic-rearrangement-i
🏷️ Tags
#string #counting_sort #sorting
Telegraph
smallest-palindromic-rearrangement-i
You are given a palindromic string s. Return the lexicographically smallest palindromic permutation of s. Example 1: Input: s = "z" Output: "z" Explanation: A string of only one character is already the lexicographically smallest palindrome. Example 2:…
leetcode.cn 2026-07-29
🔴3518.smallest-palindromic-rearrangement-ii
🏷️ Tags
#hash_table #math #string #combinatorics #counting
🔴3518.smallest-palindromic-rearrangement-ii
🏷️ Tags
#hash_table #math #string #combinatorics #counting
Telegraph
smallest-palindromic-rearrangement-ii
给你一个 回文 字符串 s 和一个整数 k。
leetcode.com 2026-07-29
🔴3518.smallest-palindromic-rearrangement-ii
🏷️ Tags
#hash_table #math #string #combinatorics #counting
🔴3518.smallest-palindromic-rearrangement-ii
🏷️ Tags
#hash_table #math #string #combinatorics #counting
Telegraph
smallest-palindromic-rearrangement-ii
You are given a palindromic string s and an integer k. Return the k-th lexicographically smallest palindromic permutation of s. If there are fewer than k distinct palindromic permutations, return an empty string. Note: Different rearrangements that yield…
leetcode.cn 2026-07-31
🟡3016.minimum-number-of-pushes-to-type-word-ii
🏷️ Tags
#greedy #hash_table #string #counting #sorting
🟡3016.minimum-number-of-pushes-to-type-word-ii
🏷️ Tags
#greedy #hash_table #string #counting #sorting
Telegraph
minimum-number-of-pushes-to-type-word-ii
给你一个字符串 word,由小写英文字母组成。 电话键盘上的按键与 不同 小写英文字母集合相映射,可以通过按压按键来组成单词。例如,按键 2 对应 ["a","b","c"],我们需要按一次键来输入 "a",按两次键来输入 "b",按三次键来输入 "c"。 现在允许你将编号为 2 到 9 的按键重新映射到 不同 字母集合。每个按键可以映射到 任意数量 的字母,但每个字母 必须 恰好 映射到 一个 按键上。你需要找到输入字符串 word 所需的 最少 按键次数。 返回重新映射按键后输入 word 所需的 最少…
leetcode.com 2026-07-31
🟡3016.minimum-number-of-pushes-to-type-word-ii
🏷️ Tags
#greedy #hash_table #string #counting #sorting
🟡3016.minimum-number-of-pushes-to-type-word-ii
🏷️ Tags
#greedy #hash_table #string #counting #sorting
Telegraph
minimum-number-of-pushes-to-type-word-ii
You are given a string word containing lowercase English letters. Telephone keypads have keys mapped with distinct collections of lowercase English letters, which can be used to form words by pushing them. For example, the key 2 is mapped with ["a","b","c"]…
leetcode.cn 2026-08-16
🟡2029.stone-game-ix
🏷️ Tags
#greedy #minimax_algorithm #array #math #counting #game_theory #nim_game #zero_sum_game
🟡2029.stone-game-ix
🏷️ Tags
#greedy #minimax_algorithm #array #math #counting #game_theory #nim_game #zero_sum_game
Telegraph
stone-game-ix
Alice 和 Bob 再次设计了一款新的石子游戏。现有一行 n 个石子,每个石子都有一个关联的数字表示它的价值。给你一个整数数组 stones ,其中 stones[i] 是第 i 个石子的价值。 Alice 和 Bob 轮流进行自己的回合,Alice 先手。每一回合,玩家需要从 stones 中移除任一石子。
leetcode.com 2026-08-16
🟡2029.stone-game-ix
🏷️ Tags
#greedy #minimax_algorithm #array #math #counting #game_theory #nim_game #zero_sum_game
🟡2029.stone-game-ix
🏷️ Tags
#greedy #minimax_algorithm #array #math #counting #game_theory #nim_game #zero_sum_game
Telegraph
stone-game-ix
Alice and Bob continue their games with stones. There is a row of n stones, and each stone has an associated value. You are given an integer array stones, where stones[i] is the value of the ith stone. Alice and Bob take turns, with Alice starting first.…
leetcode.cn 2026-08-27
🟡3720.lexicographically-smallest-permutation-greater-than-target
🏷️ Tags
#greedy #hash_table #string #counting #enumeration
🟡3720.lexicographically-smallest-permutation-greater-than-target
🏷️ Tags
#greedy #hash_table #string #counting #enumeration
Telegraph
lexicographically-smallest-permutation-greater-than-target
给你两个长度均为 n 且仅由小写英文字母组成的字符串 s 和 target。
leetcode.com 2026-08-27
🟡3720.lexicographically-smallest-permutation-greater-than-target
🏷️ Tags
#greedy #hash_table #string #counting #enumeration
🟡3720.lexicographically-smallest-permutation-greater-than-target
🏷️ Tags
#greedy #hash_table #string #counting #enumeration
Telegraph
lexicographically-smallest-permutation-greater-than-target
You are given two strings s and target, both having length n, consisting of lowercase English letters. Return the lexicographically smallest permutation of s that is strictly greater than target. If no permutation of s is lexicographically strictly greater…