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10 2017 档案

[leetcode-718-Maximum Length of Repeated Subarray]
摘要：Given two integer arrays A and B, return the maximum length of an subarray that appears in both arrays. Example 1: Note: 思路： 动态规划，dp[i][j]代表长度为i的a与长度为 阅读全文
posted @ 2017-10-31 16:33 hellowOOOrld 阅读(486) 评论(0) 推荐(0)
[leetcode-717-1-bit and 2-bit Characters]
摘要：We have two special characters. The first character can be represented by one bit 0. The second character can be represented by two bits (10 or 11). N 阅读全文
posted @ 2017-10-29 23:25 hellowOOOrld 阅读(672) 评论(0) 推荐(0)
[leetcode-540-Single Element in a Sorted Array]
摘要：Given a sorted array consisting of only integers where every element appears twice except for one element which appears once. Find this single element 阅读全文
posted @ 2017-10-22 19:29 hellowOOOrld 阅读(190) 评论(0) 推荐(0)
[leetcode-342-Power of Four]
摘要：Given an integer (signed 32 bits), write a function to check whether it is a power of 4. Example:Given num = 16, return true. Given num = 5, return fa 阅读全文
posted @ 2017-10-21 22:58 hellowOOOrld 阅读(167) 评论(0) 推荐(0)
[leetcode-367-Valid Perfect Square]
摘要：Given a positive integer num, write a function which returns True if num is a perfect square else False. Note: Do not use any built-in library functio 阅读全文
posted @ 2017-10-20 21:26 hellowOOOrld 阅读(206) 评论(0) 推荐(0)
[leetcode-290-Word Pattern]
摘要：Given a pattern and a string str, find if str follows the same pattern. Here follow means a full match, such that there is a bijection between a lette 阅读全文
posted @ 2017-10-16 22:33 hellowOOOrld 阅读(123) 评论(0) 推荐(0)
[leetcode-235-Lowest Common Ancestor of a Binary Search Tree]
摘要：Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the definition of LCA on Wikipedia 阅读全文
posted @ 2017-10-16 21:01 hellowOOOrld 阅读(152) 评论(0) 推荐(0)
[leetcode-237-Delete Node in a Linked List]
摘要：Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Supposed the linked list is 1 -> 2 -> 3 - 阅读全文
posted @ 2017-10-16 10:56 hellowOOOrld 阅读(110) 评论(0) 推荐(0)
[leetcode-394-Decode String]
摘要：Given an encoded string, return it's decoded string. The encoding rule is: k[encoded_string], where the encoded_string inside the square brackets is b 阅读全文
posted @ 2017-10-11 15:31 hellowOOOrld 阅读(154) 评论(0) 推荐(0)
[leetcode-693-Binary Number with Alternating Bits]
摘要：Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits will always have different values. Example 1: Input: 5 O 阅读全文
posted @ 2017-10-08 22:06 hellowOOOrld 阅读(175) 评论(0) 推荐(0)
[leetcode-695-Max Area of Island]
摘要：Given a non-empty 2D array grid of 0's and 1's, an island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) Yo 阅读全文
posted @ 2017-10-08 11:03 hellowOOOrld 阅读(698) 评论(0) 推荐(0)
[leetcode-690-Employee Importance]
摘要：You are given a data structure of employee information, which includes the employee's unique id, his importance value and his directsubordinates' id. 阅读全文
posted @ 2017-10-08 00:23 hellowOOOrld 阅读(400) 评论(0) 推荐(0)
[leetcode-687-Longest Univalue Path]
摘要：Given a binary tree, find the length of the longest path where each node in the path has the same value. This path may or may not pass through the roo 阅读全文
posted @ 2017-10-07 23:06 hellowOOOrld 阅读(525) 评论(0) 推荐(0)
[leetcode-686-Repeated String Match]
摘要：Given two strings A and B, find the minimum number of times A has to be repeated such that B is a substring of it. If no such solution, return -1. For 阅读全文
posted @ 2017-10-07 18:24 hellowOOOrld 阅读(461) 评论(0) 推荐(0)