Given the head of a linked list, remove the nth node from the end of the list an...
You are given the head of a singly linked-list. The list can be represented as:...
Given the head of a singly linked list, reverse the list, and return the reverse...
You are given the heads of two sorted linked lists list1 and list2. Merge the tw...
There is an integer array nums sorted in ascending order (with distinct values)....
Suppose an array of length n sorted in ascending order is rotated between 1 and...
You are given a string s and an integer k. You can choose any character of the s...
Given a string s, find the length of the longest substring without repeating cha...
Given two strings s and t, return true if t is an anagram of s, and false otherw...
Given an integer array nums, return true if any value appears at least twice in...
歐氏定理: 「英文文法跟中文相反」。以下這一段英文,最重要的是在「最後面」(choose an element of the array and increme...
前言 這題標準運用了二分搜尋法,演算法通常需要使用二分思想,即每次能夠排除一半的範圍,快速的找出陣列中所要求的元素位置,這樣時間複雜度可達 O(log n)...
MediumRelated Topics: Hash Table / Math / StringLeetCode Source 解題想法 LeetCode...
歐氏定理: 「英文文法跟中文是相反的。」Return true if s is an acronym of words, and false otherwise...
HardRelated Topics: Array / Two Pointers / Dynamic Programming / Stack / Monoto...
前言 這題是一題動態規劃問題,目標是擷取不連續的元素,全部相加起來選出最優解,因只用了一層迴圈,時間複雜度可估 O(n),這裡有 JAVA 和 Python...
HardRelated Topics: Array / GreedyLeetCode Source 解題想法 首先先確認 len(ratings),如果小於...
MediumRelated Topics: Array / GreedyLeetCode Source 解題想法 這題是看之前解的方法 Python cl...
MediumRelated Topics: Array / Prefix SumLeetCode Source 解題想法 這題我是看別人解法 原本以為要用...
MediumRelated Topics: Array / Hash Table / Math / Design / RandomizedLeetCode S...
MediumRelated Topics: Array / Sorting / Counting SortLeetCode Source 解題想法 這題我卡...
MediumRelated Topics: Array / Dynamic Programming / GreedyLeetCode Source 解題想法...
MediumRelated Topics: Array / Dynamic Programming / GreedyLeetCode Source 解題想法...
MediumRelated Topics: Array / Dynamic Programming / GreedyLeetCode Source 解題想法...
EasyRelated Topics: Array / Dynamic ProgrammingLeetCode Source 解題想法 當下想到最直覺的解法...
碎碎念 好幾天沒寫文了,但其實每天都有上去看題(例如昨天的螞蟻相撞),也都有在跟朋友討論。這幾天有很多可以用外鄉人作法來處理的題目,感覺是蠻有趣的。 題幹 給一...
MediumRelated Topics: Array / Math / Two PointersLeetCode Source 解題想法 這裡初始化 l...
EasyRelated Topics: Array / Hash Table / Divide and Conquer / Sorting / Countin...
MediumRelated Topics: Array / Two PointersLeetCode Source 解題想法 這題跟昨天類似,但可重複的數字...
EasyRelated Topics: Array / Two PointersLeetCode Source 解題想法 這題有 Hint 我有看一下 XD...