bernieloveslife

2018年10月12日

703. Kth Largest Element in a Stream（heapq）

摘要： Design a class to find the kth largest element in a stream. Note that it is the kth largest element in the sorted order, not the kth distinct element. 阅读全文

posted @ 2018-10-12 10:59 bernieloveslife 阅读(280) 评论(0) 推荐(0)

743. Network Delay Time（最短路径）

摘要： There are N network nodes, labelled 1 to N. Given times, a list of travel times as directed edges times[i] = (u, v, w), where u is the source node, v 阅读全文

posted @ 2018-10-12 10:59 bernieloveslife 阅读(216) 评论(0) 推荐(0)

849. Maximize Distance to Closest Person

摘要： In a row of seats, 1 represents a person sitting in that seat, and 0 represents that the seat is empty. There is at least one empty seat, and at least 阅读全文

posted @ 2018-10-12 10:59 bernieloveslife 阅读(198) 评论(0) 推荐(0)

2018年10月11日

572.Subtree of Another Tree

摘要： Given two non empty binary trees s and t, check whether tree t has exactly the same structure and node values with a subtree of s. A subtree of s is a 阅读全文

posted @ 2018-10-11 10:26 bernieloveslife 阅读(124) 评论(0) 推荐(0)

35.Search Insert Position（二分查找）

摘要： Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in or 阅读全文

posted @ 2018-10-11 10:25 bernieloveslife 阅读(142) 评论(0) 推荐(0)

198.House Robber（dp）

摘要： You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping yo 阅读全文

posted @ 2018-10-11 10:25 bernieloveslife 阅读(91) 评论(0) 推荐(0)

724.Find Pivot Index

摘要： Given an array of integers nums, write a method that returns the "pivot" index of this array. We define the pivot index as the index where the sum of 阅读全文

posted @ 2018-10-11 10:25 bernieloveslife 阅读(86) 评论(0) 推荐(0)

705.Design HashSet

摘要： Design a HashSet without using any built in hash table libraries. To be specific, your design should include these functions: add(value): Insert a val 阅读全文

posted @ 2018-10-11 10:25 bernieloveslife 阅读(222) 评论(0) 推荐(0)

2018年10月10日

103.Binary Tree Zigzag Level Order Traversal（层序遍历）

摘要： Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and 阅读全文

posted @ 2018-10-10 10:52 bernieloveslife 阅读(105) 评论(0) 推荐(0)

181.Employees Earning More Than Their Mangers

摘要： The Employee table holds all employees including their managers. Every employee has an Id, and there is also a column for the manager Id. + + + + + | 阅读全文

posted @ 2018-10-10 10:52 bernieloveslife 阅读(129) 评论(0) 推荐(0)

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