随笔分类 -  leetcode

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【leetcode】Intersection of Two Linked Lists
摘要：#题目简述：Write a program to find the node at which the intersection of two singly linked lists begins.For example, the following two linked lists:A: ... 阅读全文
posted @ 2015-03-26 22:10 mrbean 阅读(258) 评论(0) 推荐(0)
【leetcode】Compare Version Numbers
摘要：#题目描述：Compare two version numbers version1 and version2.If version1 > version2 return 1, if version1 int(v2[i]): return 1 ... 阅读全文
posted @ 2015-03-26 19:45 mrbean 阅读(266) 评论(0) 推荐(0)
【leetcode】Pascal's Triangle
摘要：#题目简述：Given numRows, generate the first numRows of Pascal's triangle.For example, given numRows = 5,Return[ [1], [1,1], [1,2,1], [1,3,3,1], ... 阅读全文
posted @ 2015-03-26 19:21 mrbean 阅读(235) 评论(0) 推荐(0)
【leetcode】Number of 1 Bits
摘要：#题目描述：Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as the Hamming weight).For example, the 32... 阅读全文
posted @ 2015-03-10 14:56 mrbean 阅读(281) 评论(0) 推荐(0)
【leetcode】LRU Cache
摘要：#题目简述：Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set.get(key) - Ge... 阅读全文
posted @ 2015-02-10 13:05 mrbean 阅读(276) 评论(0) 推荐(0)
【leetcode】Container With Most Water
摘要：#题目描述：Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two... 阅读全文
posted @ 2015-02-06 14:08 mrbean 阅读(185) 评论(0) 推荐(0)
【leetcode】Roman to Integer
摘要：#题目描述：Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.#解题思路：首先我们要了解罗马数字怎么写的个位数举例I, 1 】II, 2】... 阅读全文
posted @ 2015-02-05 22:51 mrbean 阅读(278) 评论(0) 推荐(0)
【leetcode】Largest Number
摘要：#题目简述：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 for... 阅读全文
posted @ 2015-02-04 17:04 mrbean 阅读(372) 评论(0) 推荐(0)
【leetcode】Longest Substring Without Repeating Characters
摘要：#题目描述：Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating lett... 阅读全文
posted @ 2015-01-22 17:02 mrbean 阅读(217) 评论(0) 推荐(0)
【leetcode】Palindrome Number
摘要：#题目简述：Determine whether an integer is a palindrome. Do this without extra space.Some hints:Could negative integers be palindromes? (ie, -1)If you are ... 阅读全文
posted @ 2015-01-22 15:22 mrbean 阅读(269) 评论(0) 推荐(0)
【leetcode】Generate Parentheses
摘要：#题目简述：Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, given n = 3, a solution set ... 阅读全文
posted @ 2015-01-22 00:41 mrbean 阅读(164) 评论(0) 推荐(0)
【leetcode】Add Two Numbers
摘要：#题目描述：You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a s... 阅读全文
posted @ 2015-01-22 00:00 mrbean 阅读(195) 评论(0) 推荐(0)
【leetcode】Median of Two Sorted Arrays
摘要：#题目简述：There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity shou... 阅读全文
posted @ 2015-01-21 22:22 mrbean 阅读(231) 评论(0) 推荐(0)
【leetcode】Valid Parentheses
摘要：#题目简述：Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.The brackets must close in... 阅读全文
posted @ 2015-01-19 14:47 mrbean 阅读(216) 评论(0) 推荐(0)
【leetcode】Factorial Trailing Zeroes
摘要：#题目描述：Given an integer n, return the number of trailing zeroes in n!.**Note**: Your solution should be in logarithmic time complexity.#解题思路：这个题目给的评级是e... 阅读全文
posted @ 2015-01-18 23:30 mrbean 阅读(197) 评论(0) 推荐(0)
【leetcode】Remove Element
摘要：#题目概述：Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed. It doesn... 阅读全文
posted @ 2015-01-18 19:29 mrbean 阅读(197) 评论(0) 推荐(0)
【leetcode】Majority Element
摘要：#题目概述：Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times.You may assume tha... 阅读全文
posted @ 2015-01-17 17:25 mrbean 阅读(1737) 评论(0) 推荐(0)
【leetcode】Climbing Stairs
摘要：#题目简述：You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can y... 阅读全文
posted @ 2015-01-17 16:00 mrbean 阅读(277) 评论(0) 推荐(0)
【leetcode】Two Sum
摘要：#题目简述：Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the ... 阅读全文
posted @ 2015-01-16 22:25 mrbean 阅读(223) 评论(0) 推荐(0)
【leetcode】Simplify Path
摘要：#题目简述：Given an absolute path for a file (Unix-style), simplify it.For example,path = "/home/", => "/home"path = "/a/./b/../../c/", => "/c"click to sho... 阅读全文
posted @ 2015-01-16 18:42 mrbean 阅读(185) 评论(0) 推荐(0)

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