02 2022 档案
摘要:题目如下: You are given a string s of even length. Split this string into two halves of equal lengths, and let a be the first half and b be the second hal
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摘要:题目如下: You may recall that an array arr is a mountain array if and only if: arr.length >= 3 There exists some index i (0-indexed) with 0 < i < arr.leng
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摘要:题目如下: You are given a 0-indexed integer array nums and an integer k. You are initially standing at index 0. In one move, you can jump at most k steps
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摘要:题目如下: You are given an array of positive integers nums and want to erase a subarray containing unique elements. The score you get by erasing the subar
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摘要:题目如下: You are given a phone number as a string number. number consists of digits, spaces ' ', and/or dashes '-'. You would like to reformat the phone
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摘要:题目如下: There is a stream of n (idKey, value) pairs arriving in an arbitrary order, where idKey is an integer between 1 and n and value is a string. No
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摘要:题目如下: You are given an integer array nums sorted in non-decreasing order. Build and return an integer array result with the same length as nums such t
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摘要:题目如下: You are given a string allowed consisting of distinct characters and an array of strings words. A string is consistent if all characters in the
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摘要:题目如下: A decimal number is called deci-binary if each of its digits is either 0 or 1 without any leading zeros. For example, 101 and 1100 are deci-bina
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摘要:题目如下: You are given an integer n, the number of teams in a tournament that has strange rules: If the current number of teams is even, each team gets p
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摘要:题目如下: LeetCode company workers use key-cards to unlock office doors. Each time a worker uses their key-card, the security system saves the worker's na
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摘要:题目如下: A string s is called good if there are no two different characters in s that have the same frequency. Given a string s, return the minimum numbe
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摘要:题目如下: You are given an integer n. A 0-indexed integer array nums of length n + 1 is generated in the following way: nums[0] = 0 nums[1] = 1 nums[2 * i
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摘要:题目如下: Design a queue that supports push and pop operations in the front, middle, and back. Implement the FrontMiddleBack class: FrontMiddleBack() Init
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摘要:题目如下: You are given two linked lists: list1 and list2 of sizes n and m respectively. Remove list1's nodes from the ath node to the bth node, and put l
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