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 2026-06-26
🔴3739.count-subarrays-with-majority-element-ii
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #prefix_sum #merge_sort
🔴3739.count-subarrays-with-majority-element-ii
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #prefix_sum #merge_sort
Telegraph
count-subarrays-with-majority-element-ii
给你一个整数数组 nums 和一个整数 target。
leetcode.com 2026-06-26
🔴3739.count-subarrays-with-majority-element-ii
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #prefix_sum #merge_sort
🔴3739.count-subarrays-with-majority-element-ii
🏷️ Tags
#segment_tree #array #hash_table #divide_and_conquer #prefix_sum #merge_sort
Telegraph
count-subarrays-with-majority-element-ii
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 2026-07-08
🟡3756.concatenate-non-zero-digits-and-multiply-by-sum-ii
🏷️ Tags
#math #string #prefix_sum
🟡3756.concatenate-non-zero-digits-and-multiply-by-sum-ii
🏷️ Tags
#math #string #prefix_sum
Telegraph
concatenate-non-zero-digits-and-multiply-by-sum-ii
给你一个长度为 m 的字符串 s,其中仅包含数字。另给你一个二维整数数组 queries,其中 queries[i] = [li, ri]。
leetcode.com 2026-07-08
🟡3756.concatenate-non-zero-digits-and-multiply-by-sum-ii
🏷️ Tags
#math #string #prefix_sum
🟡3756.concatenate-non-zero-digits-and-multiply-by-sum-ii
🏷️ Tags
#math #string #prefix_sum
Telegraph
concatenate-non-zero-digits-and-multiply-by-sum-ii
You are given a string s of length m consisting of digits. You are also given a 2D integer array queries, where queries[i] = [li, ri]. For each queries[i], extract the substring s[li..ri]. Then, perform the following:
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 2026-08-09
🟡1140.stone-game-ii
🏷️ Tags
#minimax_algorithm #array #math #dynamic_programming #game_theory #prefix_sum #zero_sum_game
🟡1140.stone-game-ii
🏷️ Tags
#minimax_algorithm #array #math #dynamic_programming #game_theory #prefix_sum #zero_sum_game
Telegraph
stone-game-ii
Alice 和 Bob 继续他们的石子游戏。许多堆石子 排成一行,每堆都有正整数颗石子 piles[i]。游戏以谁手中的石子最多来决出胜负。 Alice 和 Bob 轮流进行,Alice 先开始。最初,M = 1。 在每个玩家的回合中,该玩家可以拿走剩下的 前 X 堆的所有石子,其中 1 <= X <= 2M。然后,令 M = max(M, X)。 游戏一直持续到所有石子都被拿走。 假设 Alice 和 Bob 都发挥出最佳水平,返回 Alice 可以得到的最大数量的石头。 示例 1: 输入:piles…
leetcode.com 2026-08-09
🟡1140.stone-game-ii
🏷️ Tags
#minimax_algorithm #array #math #dynamic_programming #game_theory #prefix_sum #zero_sum_game
🟡1140.stone-game-ii
🏷️ Tags
#minimax_algorithm #array #math #dynamic_programming #game_theory #prefix_sum #zero_sum_game
Telegraph
stone-game-ii
Alice and Bob continue their games with piles of stones. There are a number of piles arranged in a row, and each pile has a positive integer number of stones piles[i]. The objective of the game is to end with the most stones. Alice and Bob take turns, with…
leetcode.com 2026-08-24
🔴1872.stone-game-viii
🏷️ Tags
#minimax_algorithm #array #math #dynamic_programming #game_theory #prefix_sum #zero_sum_game
🔴1872.stone-game-viii
🏷️ Tags
#minimax_algorithm #array #math #dynamic_programming #game_theory #prefix_sum #zero_sum_game
Telegraph
stone-game-viii
Alice and Bob take turns playing a game, with Alice starting first. There are n stones arranged in a row. On each player's turn, while the number of stones is more than one, they will do the following:
leetcode.cn 2026-09-16
🟡1621.number-of-sets-of-k-non-overlapping-line-segments
🏷️ Tags
#math #dynamic_programming #combinatorics #prefix_sum
🟡1621.number-of-sets-of-k-non-overlapping-line-segments
🏷️ Tags
#math #dynamic_programming #combinatorics #prefix_sum
Telegraph
number-of-sets-of-k-non-overlapping-line-segments
给你一维空间的 n 个点,其中第 i 个点(编号从 0 到 n-1)位于 x = i 处,请你找到 恰好 k 个不重叠 线段且每个线段至少覆盖两个点的方案数。线段的两个端点必须都是 整数坐标 。这 k 个线段不需要全部覆盖全部 n 个点,且它们的端点 可以 重合。 请你返回 k 个不重叠线段的方案数。由于答案可能很大,请将结果对 109 + 7 取余 后返回。 示例 1: 输入:n = 4, k = 2 输出:5 解释:如图所示,两个线段分别用红色和蓝色标出。 上图展示了 5 种不同的方案 {(0,2)…
leetcode.com 2026-09-16
🟡1621.number-of-sets-of-k-non-overlapping-line-segments
🏷️ Tags
#math #dynamic_programming #combinatorics #prefix_sum
🟡1621.number-of-sets-of-k-non-overlapping-line-segments
🏷️ Tags
#math #dynamic_programming #combinatorics #prefix_sum
Telegraph
number-of-sets-of-k-non-overlapping-line-segments
Given n points on a 1-D plane, where the ith point (from 0 to n-1) is at x = i, find the number of ways we can draw exactly k non-overlapping line segments such that each segment covers two or more points. The endpoints of each segment must have integral…
leetcode.cn 2026-09-23
🟡1658.minimum-operations-to-reduce-x-to-zero
🏷️ Tags
#array #hash_table #binary_search #prefix_sum #sliding_window
🟡1658.minimum-operations-to-reduce-x-to-zero
🏷️ Tags
#array #hash_table #binary_search #prefix_sum #sliding_window
Telegraph
minimum-operations-to-reduce-x-to-zero
给你一个整数数组 nums 和一个整数 x 。每一次操作时,你应当移除数组 nums 最左边或最右边的元素,然后从 x 中减去该元素的值。请注意,需要 修改 数组以供接下来的操作使用。 如果可以将 x 恰好 减到 0 ,返回 最小操作数 ;否则,返回 -1 。 示例 1: 输入:nums = [1,1,4,2,3], x = 5 输出:2 解释:最佳解决方案是移除后两个元素,将 x 减到 0 。 示例 2: 输入:nums = [5,6,7,8,9], x = 4 输出:-1 示例 3: 输入:nums…
leetcode.com 2026-09-23
🟡1658.minimum-operations-to-reduce-x-to-zero
🏷️ Tags
#array #hash_table #binary_search #prefix_sum #sliding_window
🟡1658.minimum-operations-to-reduce-x-to-zero
🏷️ Tags
#array #hash_table #binary_search #prefix_sum #sliding_window
Telegraph
minimum-operations-to-reduce-x-to-zero
You are given an integer array nums and an integer x. In one operation, you can either remove the leftmost or the rightmost element from the array nums and subtract its value from x. Note that this modifies the array for future operations. Return the minimum…