leetcode.com 2026-07-18
🟢1979.find-greatest-common-divisor-of-array
🏷️ Tags
#array #math #number_theory
🟢1979.find-greatest-common-divisor-of-array
🏷️ Tags
#array #math #number_theory
Telegraph
find-greatest-common-divisor-of-array
Given an integer array nums, return the greatest common divisor of the smallest number and largest number in nums. The greatest common divisor of two numbers is the largest positive integer that evenly divides both numbers. Example 1: Input: nums = [2,5…
leetcode.cn 2026-07-19
🟡1081.smallest-subsequence-of-distinct-characters
🏷️ Tags
#stack #greedy #string #monotonic_stack
🟡1081.smallest-subsequence-of-distinct-characters
🏷️ Tags
#stack #greedy #string #monotonic_stack
Telegraph
smallest-subsequence-of-distinct-characters
返回 s 字典序最小的子序列,该子序列包含 s 的所有不同字符,且只包含一次。 示例 1: 输入:s = "bcabc" 输出:"abc" 示例 2: 输入:s = "cbacdcbc" 输出:"acdb" 提示:
leetcode.com 2026-07-19
🟡1081.smallest-subsequence-of-distinct-characters
🏷️ Tags
#stack #greedy #string #monotonic_stack
🟡1081.smallest-subsequence-of-distinct-characters
🏷️ Tags
#stack #greedy #string #monotonic_stack
Telegraph
smallest-subsequence-of-distinct-characters
Given a string s, return the lexicographically smallest subsequence of s that contains all the distinct characters of s exactly once. Example 1: Input: s = "bcabc" Output: "abc" Example 2: Input: s = "cbacdcbc" Output: "acdb" Constraints:
leetcode.cn 2026-07-22
🔴3501.maximize-active-section-with-trade-ii
🏷️ Tags
#segment_tree #array #string #binary_search
🔴3501.maximize-active-section-with-trade-ii
🏷️ Tags
#segment_tree #array #string #binary_search
Telegraph
maximize-active-section-with-trade-ii
给你一个长度为 n 的二进制字符串 s ,其中:
leetcode.com 2026-07-22
🔴3501.maximize-active-section-with-trade-ii
🏷️ Tags
#segment_tree #array #string #binary_search
🔴3501.maximize-active-section-with-trade-ii
🏷️ Tags
#segment_tree #array #string #binary_search
Telegraph
maximize-active-section-with-trade-ii
You are given a binary string s of length n, where:
leetcode.cn 2026-07-24
🟡3514.number-of-unique-xor-triplets-ii
🏷️ Tags
#bit_manipulation #array #math #enumeration
🟡3514.number-of-unique-xor-triplets-ii
🏷️ Tags
#bit_manipulation #array #math #enumeration
Telegraph
number-of-unique-xor-triplets-ii
给你一个整数数组 nums 。
leetcode.com 2026-07-24
🟡3514.number-of-unique-xor-triplets-ii
🏷️ Tags
#bit_manipulation #array #math #enumeration
🟡3514.number-of-unique-xor-triplets-ii
🏷️ Tags
#bit_manipulation #array #math #enumeration
Telegraph
number-of-unique-xor-triplets-ii
You are given an integer array nums. A XOR triplet is defined as the XOR of three elements nums[i] XOR nums[j] XOR nums[k] where i <= j <= k. Return the number of unique XOR triplet values from all possible triplets (i, j, k). Example 1: Input: nums = [1…
leetcode.cn 2026-07-27
🟢1464.maximum-product-of-two-elements-in-an-array
🏷️ Tags
#array #sorting #heap_priority_queue
🟢1464.maximum-product-of-two-elements-in-an-array
🏷️ Tags
#array #sorting #heap_priority_queue
Telegraph
maximum-product-of-two-elements-in-an-array
给你一个整数数组 nums,请你选择数组的两个不同下标 i 和 j,使 (nums[i]-1)*(nums[j]-1) 取得最大值。 请你计算并返回该式的最大值。 示例 1: 输入:nums = [3,4,5,2] 输出:12 解释:如果选择下标 i=1 和 j=2(下标从 0 开始),则可以获得最大值,(nums[1]-1)*(nums[2]-1) = (4-1)*(5-1) = 3*4 = 12 。 示例 2: 输入:nums = [1,5,4,5] 输出:16 解释:选择下标 i=1 和 j=3(下标从…
leetcode.com 2026-07-27
🟢1464.maximum-product-of-two-elements-in-an-array
🏷️ Tags
#array #sorting #heap_priority_queue
🟢1464.maximum-product-of-two-elements-in-an-array
🏷️ Tags
#array #sorting #heap_priority_queue
Telegraph
maximum-product-of-two-elements-in-an-array
Example 1: Input: nums = [3,4,5,2] Output: 12 Explanation: If you choose the indices i=1 and j=2 (indexed from 0), you will get the maximum value, that is, (nums[1]-1)*(nums[2]-1) = (4-1)*(5-1) = 3*4 = 12. Example 2: Input: nums = [1,5,4,5] Output: 16 Explanation:…