随笔分类 -  LeetCode

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[LeetCode]Nim Game
摘要：题目描述:(链接)You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 ... 阅读全文
posted @ 2015-10-15 11:23 skycore 阅读(109) 评论(0) 推荐(0)
[LeetCode]Gray Code
摘要：题目描述：(链接)The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrepresenting the tot... 阅读全文
posted @ 2015-10-14 23:10 skycore 阅读(132) 评论(0) 推荐(0)
[LeetCode]Climbing Stairs
摘要：题目链接:(链接)You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can ... 阅读全文
posted @ 2015-10-12 17:53 skycore 阅读(153) 评论(0) 推荐(0)
[LeetCode]Plus One
摘要：题目描述：(链接)Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant di... 阅读全文
posted @ 2015-10-12 17:28 skycore 阅读(100) 评论(0) 推荐(0)
[LeetCode]Rotate Image
摘要：题目描述:(链接）You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?解题思路：先将矩阵选... 阅读全文
posted @ 2015-10-11 22:11 skycore 阅读(148) 评论(0) 推荐(0)
[LeetCode]Word Pattern
摘要：题目描述:（链接）Given apatternand a stringstr, find ifstrfollows the same pattern.Herefollowmeans a full match, such that there is a bijection between a lett... 阅读全文
posted @ 2015-10-11 13:20 skycore 阅读(187) 评论(0) 推荐(0)
[LeetCode]Trapping Rain Water
摘要：题目描述:(链接)Givennnon-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after r... 阅读全文
posted @ 2015-10-11 10:45 skycore 阅读(129) 评论(0) 推荐(0)
[LeetCode]Valid Sudoku
摘要：题目描述:(链接)Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are fil... 阅读全文
posted @ 2015-10-08 22:34 skycore 阅读(145) 评论(0) 推荐(0)
[LeetCode]Permutation Sequence
摘要：题目描述:(链接)The set[1,2,3,…,n]contains a total ofn! unique permutations.By listing and labeling all of the permutations in order,We get the following seq... 阅读全文
posted @ 2015-10-07 15:23 skycore 阅读(131) 评论(0) 推荐(0)
[LeetCode]Next Permutation
摘要：题目描述:(链接)Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is no... 阅读全文
posted @ 2015-10-04 20:14 skycore 阅读(167) 评论(0) 推荐(0)
[LeetCode]4Sum
摘要：题目描述:(链接)Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives th... 阅读全文
posted @ 2015-10-03 13:29 skycore 阅读(139) 评论(0) 推荐(0)
[LeetCode]3Sum Closest
摘要：题目描述:(链接)Given an arraySofnintegers, find three integers inSsuch that the sum is closest to a given number, target. Return the sum of the three intege... 阅读全文
posted @ 2015-10-03 11:31 skycore 阅读(132) 评论(0) 推荐(0)
[LeetCode]3Sum
摘要：题目描述:(链接)Given an arraySofnintegers, are there elementsa,b,cinSsuch thata+b+c= 0? Find all unique triplets in the array which gives the sum of zero.No... 阅读全文
posted @ 2015-10-03 11:14 skycore 阅读(140) 评论(0) 推荐(0)
[LeetCode]Longest Consecutive Sequence
摘要：题目描述:(链接)Given an unsorted array of integers, find the length of the longest consecutive elements sequence.For example,Given[100, 4, 200, 1, 3, 2],The... 阅读全文
posted @ 2015-10-02 21:04 skycore 阅读(150) 评论(0) 推荐(0)
[LeetCode]Median of Two Sorted Arrays
摘要：题目描述:(题目链接)There are two sorted arraysnums1andnums2of size m and n respectively. Find the median of the two sorted arrays. The overall run time comple... 阅读全文
posted @ 2015-10-02 17:38 skycore 阅读(193) 评论(0) 推荐(0)
[LeetCode]Search in Rotated Sorted Array II
摘要：题目描述:(链接)Follow up for "Search in Rotated Sorted Array":What ifduplicatesare allowed?Would this affect the run-time complexity? How and why?Write a fu... 阅读全文
posted @ 2015-09-30 15:22 skycore 阅读(125) 评论(0) 推荐(0)
[LeetCode]Search in Rotated Sorted Array
摘要：题目描述:(链接)Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e.,0 1 2 4 5 6 7might become4 5 6 7 0 1 2).You are given a targe... 阅读全文
posted @ 2015-09-30 09:54 skycore 阅读(125) 评论(0) 推荐(0)
[LeetCode]Remove Duplicates from Sorted Array II
摘要：题目描述:(链接)Follow up for "Remove Duplicates":What if duplicates are allowed at mosttwice?For example,Given sorted arraynums=[1,1,1,2,2,3],Your function ... 阅读全文
posted @ 2015-09-29 17:54 skycore 阅读(125) 评论(0) 推荐(0)
[LeetCode]Remove Duplicates from Sorted Array
摘要：题目描述：（https://leetcode.com/problems/remove-duplicates-from-sorted-array/）Given a sorted array, remove the duplicates in place such that each element a... 阅读全文
posted @ 2015-09-24 15:59 skycore 阅读(120) 评论(0) 推荐(0)
[LeetCode]Reorder List
摘要：题目描述：Given a singly linked listL:L0→L1→…→Ln-1→Ln,reorder it to:L0→Ln→L1→Ln-1→L2→Ln-2→…You must do this in-place without altering the nodes' values.For... 阅读全文
posted @ 2014-10-21 15:21 skycore 阅读(147) 评论(0) 推荐(0)

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