01 2018 档案
摘要：原题链接在这里：https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii/description/ 题目： Given a binary tree, you need to find the length of
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摘要：原题链接在这里：https://leetcode.com/problems/cut-off-trees-for-golf-event/ 题目： You are asked to cut off trees in a forest for a golf event. The forest is rep
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摘要：原题链接在这里：https://leetcode.com/problems/boundary-of-binary-tree/description/ 题目： Given a binary tree, return the values of its boundary in anti-clockwis
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摘要：原题链接在这里：https://leetcode.com/problems/partition-labels/description/ 题目： A string S of lowercase letters is given. We want to partition this string int
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摘要：原题链接在这里：https://leetcode.com/problems/most-frequent-subtree-sum/description/ 题目： Given the root of a tree, you are asked to find the most frequent sub
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摘要：原题链接在这里：https://leetcode.com/problems/serialize-and-deserialize-bst/description/ 题目： Serialization is the process of converting a data structure or ob
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摘要：原题链接在这里：https://leetcode.com/problems/word-abbreviation/ 题目： Given an array of n distinct non-empty strings, you need to generate minimal possible abb
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摘要：原题链接在这里：https://leetcode.com/problems/remove-k-digits/description/ 题目： Given a non-negative integer num represented as a string, remove k digits from
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摘要：原题链接在这里：https://leetcode.com/problems/ternary-expression-parser/description/ 题目： Given a string representing arbitrarily nested ternary expressions, c
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摘要：原题链接在这里：https://leetcode.com/problems/frog-jump/description/ 题目： A frog is crossing a river. The river is divided into x units and at each unit there
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摘要：原题链接在这里：https://leetcode.com/problems/course-schedule-iii/ 题目： There are n different online courses numbered from 1 to n. Each course has some duratio
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摘要：原题链接在这里：https://leetcode.com/problems/my-calendar-i/description/ 题目： Implement a MyCalendar class to store your events. A new event can be added if ad
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摘要：原题链接在这里：https://leetcode.com/problems/permutation-in-string/description/ 题目： Given two strings s1 and s2, write a function to return true if s2 contai
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摘要：原题链接在这里：https://leetcode.com/problems/find-permutation/description/ 题目： By now, you are given a secret signature consisting of character 'D' and 'I'.
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摘要：原题链接在这里：https://leetcode.com/problems/number-of-atoms/description/ 题目： Given a chemical formula (given as a string), return the count of each atom. An
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摘要：原题链接在这里：https://leetcode.com/problems/string-compression/ 题目： Given an array of characters, compress it in-place. The length after compression must al
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摘要：原题链接在这里：https://leetcode.com/problems/daily-temperatures/ 题目： Given a list of daily temperatures, produce a list that, for each day in the input, tell
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摘要：原题链接在这里：https://leetcode.com/problems/friend-circles/description/ 题目： There are N students in a class. Some of them are friends, while some are not. T
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