leetcode - 随笔分类(第2页) - 西小贝

leetcode90 Subsets II

摘要：Given a collection of integers that might contain duplicates,nums, return all possible subsets.Note:Elements in a subset must be in non-descending ord... 阅读全文

posted @ 2016-01-06 16:07 西小贝阅读(187) 评论(0) 推荐(0)

leetcode89 Gray Code

摘要：The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrepresenting the total number... 阅读全文

posted @ 2016-01-06 16:06 西小贝阅读(155) 评论(0) 推荐(0)

leetcode86 Partition List

摘要：Given a linked list and a valuex, partition it such that all nodes less thanxcome before nodes greater than or equal tox.You should preserve the origi... 阅读全文

posted @ 2016-01-06 16:05 西小贝阅读(125) 评论(0) 推荐(0)

leetcode82 Remove Duplicates from Sorted List II

摘要：Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list.For example,Given1->2->3-... 阅读全文

posted @ 2016-01-06 16:04 西小贝阅读(112) 评论(0) 推荐(0)

leetcode81 Search in Rotated Sorted Array II

摘要：Follow up for "Search in Rotated Sorted Array":What ifduplicatesare allowed?Would this affect the run-time complexity? How and why?Write a function to... 阅读全文

posted @ 2016-01-06 16:03 西小贝阅读(99) 评论(0) 推荐(0)

leetcode80 Remove Duplicates from Sorted Array II

摘要：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 should re... 阅读全文

posted @ 2016-01-06 16:02 西小贝阅读(99) 评论(0) 推荐(0)

leetcode79 Word Search

摘要：Given a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, where "adjace... 阅读全文

posted @ 2016-01-06 16:00 西小贝阅读(132) 评论(0) 推荐(0)

leetcode78 Subsets

摘要：Given a set of distinct integers,nums, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set must not... 阅读全文

posted @ 2016-01-06 15:59 西小贝阅读(125) 评论(0) 推荐(0)

leetcode77 Combinations

摘要：Given two integersnandk, return all possible combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution is:[ [2,4], [3,4], [2,3],... 阅读全文

posted @ 2016-01-06 15:57 西小贝阅读(139) 评论(0) 推荐(0)

leetcode75 Sort Colors

摘要：Given an array withnobjects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order red, wh... 阅读全文

posted @ 2016-01-06 15:56 西小贝阅读(112) 评论(0) 推荐(0)

leetcode74 Search a 2D Matrix

摘要：Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row are sorted from l... 阅读全文

posted @ 2016-01-06 15:55 西小贝阅读(196) 评论(0) 推荐(0)

leetcode73 Set Matrix Zeroes

摘要：Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.Follow up:Did you use extra space?A straight forward solution... 阅读全文

posted @ 2016-01-06 15:54 西小贝阅读(141) 评论(0) 推荐(0)

leetcode71 Simplify Path

摘要：Given an absolute path for a file (Unix-style), simplify it.For example,path="/home/", =>"/home"path="/a/./b/../../c/", =>"/c"Corner Cases:Did you con... 阅读全文

posted @ 2016-01-06 15:52 西小贝阅读(148) 评论(0) 推荐(0)

leetcode69 Sqrt(x)

摘要：Implementint sqrt(int x).Compute and return the square root ofx. 1 class Solution {//二分 2 public: 3 int mySqrt(int x) { 4 if(x<=1) 5 ... 阅读全文

posted @ 2016-01-06 15:50 西小贝阅读(150) 评论(0) 推荐(0)

leetcode64 Minimum Path Sum

摘要：Given amxngrid filled with non-negative numbers, find a path from top left to bottom right whichminimizesthe sum of all numbers along its path.Note:Yo... 阅读全文

posted @ 2016-01-06 15:48 西小贝阅读(120) 评论(0) 推荐(0)

leetcode62 Unique Paths

摘要：A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or right at any point ... 阅读全文

posted @ 2016-01-06 15:46 西小贝阅读(162) 评论(0) 推荐(0)

leetcode63 Unique Paths II

摘要：Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i... 阅读全文

posted @ 2016-01-06 15:46 西小贝阅读(147) 评论(0) 推荐(0)

leetcode61 Rotate List

摘要：Given a list, rotate the list to the right bykplaces, wherekis non-negative.For example:Given1->2->3->4->5->NULLandk=2,return4->5->1->2->3->NULL. 1 /*... 阅读全文

posted @ 2016-01-06 15:44 西小贝阅读(160) 评论(0) 推荐(0)

leetcode60 Permutation Sequence

摘要：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 sequence (ie... 阅读全文

posted @ 2016-01-06 15:43 西小贝阅读(154) 评论(0) 推荐(0)

leetcode59 Spiral Matrix II

摘要：Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.For example,Givenn=3,You should return the following matri... 阅读全文

posted @ 2016-01-06 15:42 西小贝阅读(131) 评论(0) 推荐(0)

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