摘要:
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 longes... 阅读全文
摘要:
problem:Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.F... 阅读全文
摘要:
Given a linked list, swap every two adjacent nodes and return its head. For example,Given 1->2->3->4, you should return the list as 2->1->4->3.Your al... 阅读全文
摘要:
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An example is the root-to-leaf path 1->2->3 which... 阅读全文