HolyDominat的专栏

Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the target, whe

Given n points on a 2D plane, find the maximum number of points that lie on the same straight line.

Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Follow up: Can you solve it without using extra space? Solution: Code: /** * Definition fo

Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? Solution: Code: /** * Definition for singly-linked list. * struct ListNode

Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each

Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given [100, 4, 200, 1, 3, 2], The longest consecutive elements sequence is [1, 2, 3