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LeetCode Simplify Path

DescriptionGiven an absolute path for a file (Unix-style), simplify it. For example,path = “/home/“, => “/home”path = “/a/./b/../../c/“, => “/c” The original problem is here. The original code i
8月 26 2015
#leetcode

LeetCode Missing Number

DescriptionGiven an array containing n distinct numbers taken from 0, 1, 2, …, n, find the one that is missing from the array. For example,Given nums = [0, 1, 3] return 2. Note:Your algorithm should r
8月 26 2015
#leetcode

LeetCode Binary Tree Paths

DescriptionGiven a binary tree, return all root-to-leaf paths. For example, given the following binary tree: 1 / \ 2 3 \ 5 All root-to-leaf paths are: ["1->2->5", "1
8月 26 2015
#leetcode

LeetCode Ugly Number

DescriptionWrite a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugl
8月 24 2015
#leetcode

LeetCode Substring with Concatenation of All Words

DescriptionYou are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s that is a concatenation of each word in words exactly
8月 18 2015
#leetcode

LeeCcode: LRU Cache

DescriptionDesign and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set. get(key) - Get the value (will always be positive) of the
8月 13 2015
#leetcode

LeetCode Clone Graph

DescriptionClone an undirected graph. Each node in the graph contains a label and a list of its neighbors. The original problem is here. The original code is here.
8月 13 2015
#leetcode

LeetCode Word Ladder

DescriptionGiven two words (beginWord and endWord), and a dictionary, find the length of shortest transformation sequence from beginWord to endWord, such that: Only one letter can be changed at a tim
8月 13 2015
#leetcode

LeetCode Unqiue Binary Search Trees 2

DescriptionGiven n, generate all structurally unique BST’s (binary search trees) that store values 1…n. For example,Given n = 3, your program should return all 5 unique BST’s shown below. 1
8月 13 2015
#leetcode

LeetCode Palindrome Partitioning

DescriptionGiven a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = “aab”,Return [ [&quo
8月 13 2015
#leetcode
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