leetcode.com 2026-10-12
🔴2897.apply-operations-on-array-to-maximize-sum-of-squares
🏷️ Tags
#greedy #bit_manipulation #array #hash_table
🔴2897.apply-operations-on-array-to-maximize-sum-of-squares
🏷️ Tags
#greedy #bit_manipulation #array #hash_table
Telegraph
apply-operations-on-array-to-maximize-sum-of-squares
You are given a 0-indexed integer array nums and a positive integer k. You can do the following operation on the array any number of times:
leetcode.cn 2026-10-15
🟢2913.subarrays-distinct-element-sum-of-squares-i
🏷️ Tags
#binary_indexed_tree #segment_tree #array #hash_table
🟢2913.subarrays-distinct-element-sum-of-squares-i
🏷️ Tags
#binary_indexed_tree #segment_tree #array #hash_table
Telegraph
subarrays-distinct-element-sum-of-squares-i
给你一个下标从 0 开始的整数数组 nums 。 定义 nums 一个子数组的 不同计数 值如下:
leetcode.com 2026-10-15
🟢2913.subarrays-distinct-element-sum-of-squares-i
🏷️ Tags
#binary_indexed_tree #segment_tree #array #hash_table
🟢2913.subarrays-distinct-element-sum-of-squares-i
🏷️ Tags
#binary_indexed_tree #segment_tree #array #hash_table
Telegraph
subarrays-distinct-element-sum-of-squares-i
You are given a 0-indexed integer array nums. The distinct count of a subarray of nums is defined as:
leetcode.cn 2026-10-16
🔴2916.subarrays-distinct-element-sum-of-squares-ii
🏷️ Tags
#binary_indexed_tree #segment_tree #array #hash_table
🔴2916.subarrays-distinct-element-sum-of-squares-ii
🏷️ Tags
#binary_indexed_tree #segment_tree #array #hash_table
Telegraph
subarrays-distinct-element-sum-of-squares-ii
给你一个下标从 0 开始的整数数组 nums 。 定义 nums 一个子数组的 不同计数 值如下:
leetcode.com 2026-10-16
🔴2916.subarrays-distinct-element-sum-of-squares-ii
🏷️ Tags
#binary_indexed_tree #segment_tree #array #hash_table
🔴2916.subarrays-distinct-element-sum-of-squares-ii
🏷️ Tags
#binary_indexed_tree #segment_tree #array #hash_table
Telegraph
subarrays-distinct-element-sum-of-squares-ii
You are given a 0-indexed integer array nums. The distinct count of a subarray of nums is defined as:
leetcode.cn 2026-10-18
🔴1569.number-of-ways-to-reorder-array-to-get-same-bst
🏷️ Tags
#tree #union_find #binary_search_tree #memoization #array #math #divide_and_conquer #dynamic_programming #binary_tree #combinatorics #fermats_little_theorem
🔴1569.number-of-ways-to-reorder-array-to-get-same-bst
🏷️ Tags
#tree #union_find #binary_search_tree #memoization #array #math #divide_and_conquer #dynamic_programming #binary_tree #combinatorics #fermats_little_theorem
Telegraph
number-of-ways-to-reorder-array-to-get-same-bst
给你一个数组 nums 表示 1 到 n 的一个排列。我们按照元素在 nums 中的顺序依次插入一个初始为空的二叉搜索树(BST)。请你统计将 nums 重新排序后,统计满足如下条件的方案数:重排后得到的二叉搜索树与 nums 原本数字顺序得到的二叉搜索树相同。