LeetCode解题 - 随笔分类 - 宵夜在哪

454. 4Sum II 解题记录

摘要：题目描述： Given four lists A, B, C, D of integer values, compute how many tuples (i, j, k, l) there are such that A[i] + B[j] + C[k] + D[l] is zero. To ma 阅读全文

posted @ 2018-11-10 21:16 宵夜在哪阅读(109) 评论(0) 推荐(0)

98. Validate Binary Search Tree 解题记录

摘要：题目描述： Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node contain 阅读全文

posted @ 2018-04-18 23:06 宵夜在哪阅读(121) 评论(0) 推荐(0)

93. Restore IP Addresses 解题思路

摘要：题目描述： Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example: Given "25525511135", ret 阅读全文

posted @ 2018-04-17 16:30 宵夜在哪阅读(107) 评论(0) 推荐(0)

96. Unique Binary Search Trees 解题记录

摘要：题目描述： Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example, Given n = 3, there are a total of 5 uniq 阅读全文

posted @ 2018-04-16 09:14 宵夜在哪阅读(85) 评论(0) 推荐(0)

95. Unique Binary Search Trees II 解题记录

摘要：题目描述： Given an integer n, generate all structurally unique BST's (binary search trees) that store values 1...n. For example, Given n = 3, your program 阅读全文

posted @ 2018-04-15 09:37 宵夜在哪阅读(123) 评论(0) 推荐(0)

71. Simplify Path 解题记录

摘要：题目描述： Given an absolute path for a file (Unix-style), simplify it. For example, path = "/home/", => "/home" path = "/a/./b/../../c/", => "/c" Corner C 阅读全文

posted @ 2018-04-14 22:33 宵夜在哪阅读(91) 评论(0) 推荐(0)

260. Single Number III 解题记录

摘要：题目描述： Given an array of numbers nums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two ele 阅读全文

posted @ 2018-04-13 19:53 宵夜在哪阅读(86) 评论(0) 推荐(0)

300. Longest Increasing Subsequence 解题记录

摘要：题目描述： Given an unsorted array of integers, find the length of longest increasing subsequence. For example, Given [10, 9, 2, 5, 3, 7, 101, 18], The lon 阅读全文

posted @ 2018-04-12 23:33 宵夜在哪阅读(115) 评论(0) 推荐(0)

238. Product of Array Except Self 解题记录

摘要：题目描述： Given an array of n integers where n > 1, nums, return an array output such that output[i] is equal to the product of all the elements of nums e 阅读全文

posted @ 2018-04-11 19:04 宵夜在哪阅读(93) 评论(0) 推荐(0)

152. Maximum Product Subarray 解题记录

摘要：题目描述： Find the contiguous subarray within an array (containing at least one number) which has the largest product. For example, given the array [2,3,- 阅读全文

posted @ 2018-04-10 21:46 宵夜在哪阅读(118) 评论(0) 推荐(0)

216. Combination Sum III 解题记录

摘要：题目描述： Find all possible combinations of k numbers that add up to a number n, given that only numbers from 1 to 9 can be used and each combination shou 阅读全文

posted @ 2018-04-08 23:42 宵夜在哪阅读(115) 评论(0) 推荐(0)

215. Kth Largest Element in an Array 解题记录

摘要：题目描述： 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. Fo 阅读全文

posted @ 2018-04-07 22:49 宵夜在哪阅读(79) 评论(0) 推荐(0)

209. Minimum Size Subarray Sum 解题记录

摘要：题目描述： Given an array of n positive integers and a positive integer s, find the minimal length of a contiguous subarray of which the sum ≥ s. If there 阅读全文

posted @ 2018-04-06 12:09 宵夜在哪阅读(101) 评论(0) 推荐(0)

201. Bitwise AND of Numbers Range 解题记录

摘要：题目描述： Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive. For example, given the ran 阅读全文

posted @ 2018-04-05 12:22 宵夜在哪阅读(117) 评论(0) 推荐(0)

179. Largest Number 解题记录

摘要：题目描述： Given a list of non negative integers, arrange them such that they form the largest number. For example, given [3, 30, 34, 5, 9], the largest fo 阅读全文

posted @ 2018-04-04 21:32 宵夜在哪阅读(87) 评论(0) 推荐(0)

200. Number of Islands 解题记录

摘要：题目描述： Given a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island is surrounded by water and is formed by connecting a 阅读全文

posted @ 2018-04-03 15:36 宵夜在哪阅读(102) 评论(0) 推荐(0)

199. Binary Tree Right Side View 解题记录

摘要：题目描述： Given a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom. F 阅读全文

posted @ 2018-04-02 08:39 宵夜在哪阅读(99) 评论(0) 推荐(0)

162. Find Peak Element 解题记录

摘要：题目描述： A peak element is an element that is greater than its neighbors. Given an input array where num[i] ≠ num[i+1], find a peak element and return it 阅读全文

posted @ 2018-04-01 18:29 宵夜在哪阅读(82) 评论(0) 推荐(0)

153. Find Minimum in Rotated Sorted Array 解题记录

摘要：题目描述： 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). 阅读全文

posted @ 2018-04-01 00:25 宵夜在哪阅读(93) 评论(0) 推荐(0)

137. Single Number II 解题记录

摘要：题目描述： Given an array of integers, every element appears three times except for one, which appears exactly once. Find that single one. 解题思路：这题还是用136也就阅读全文

posted @ 2018-03-30 23:38 宵夜在哪阅读(103) 评论(0) 推荐(0)

随笔分类 - LeetCode解题