摘要：
Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]). Y 阅读全文
摘要：
Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note: The number of elements initialized in nums1 and num 阅读全文
摘要：
Given the running logs of n functions that are executed in a nonpreemptive single threaded CPU, find the exclusive time of these functions. Each funct 阅读全文
摘要：
Given a binary tree, return all root-to-leaf paths. Note: A leaf is a node with no children. Example: 题目 给定一棵二叉树，求出所有根到叶的路径。 思路 DFS， Very straightforw 阅读全文
摘要：
Given a list accounts, each element accounts[i] is a list of strings, where the first element accounts[i][0] is a name, and the rest of the elements a 阅读全文